open questions to all

[akg]

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After an automobile accident , a patient's chin deviates to the left on opening mouth widely.His mandible is probably fractured at which of the following points?

a. genial tubercle
b.left condyolar neck
c.right condylar neck
d.left mental foramen
e.right mental foramen

post the correct anwer and justify it with right explanation

 

[Inshaa]

The answer to the question is hyaluronidase . could you explain this

yes,the answer is hyaluronidase.

 

[BABAK kabab]

A 72-year-old black woman has the abrupt onset of right-sided weakness affecting the face and arms. MRI is consistent with an infarct in the territory of the middle cerebral artery. Pathologic examination of the patient's brain would likely show


A. caseous necrosis
B. coagulative necrosis
C. enzymatic fat necrosis
D. gangrenous necrosis
E. liquefactive necrosis

 

[b'lore]

A 72-year-old black woman has the abrupt onset of right-sided weakness affecting the face and arms. MRI is consistent with an infarct in the territory of the middle cerebral artery. Pathologic examination of the patient's brain would likely show


A. caseous necrosis
B. coagulative necrosis
C. enzymatic fat necrosis
D. gangrenous necrosis
E. liquefactive necrosis[/QUOTE


hi,the answer is E,liquefaction necrosis..


i remember studying that most of the infarctions are coagulative except in brain which is of liquefaction type.


caseous necrosis is seen in centre of tuberculous infections
fat necrosis is a special form of cell death,following acute pancreatic necrosis and traumatic fat necrosis
gangrenous necrosis is a form of of necrosis with putrefaction.it is usually of coagulative due to ischaemia.

correct me if i am wrong..

 

[ridge]

A 72-year-old black woman has the abrupt onset of right-sided weakness affecting the face and arms. MRI is consistent with an infarct in the territory of the middle cerebral artery. Pathologic examination of the patient's brain would likely show


A. caseous necrosis
B. coagulative necrosis
C. enzymatic fat necrosis
D. gangrenous necrosis
E. liquefactive necrosis


Yes ans is liquefactive necrosis

 

[ridge]

thanks for correcting me.

 

[BABAK kabab]

Thanks so much guys could you help me with this too?

WHich of the following is feature of infectious mononucleous?
A.frequently appear in old patient
B.peripheral blood shows eosinophil
C.the mortality rate is %20
D.the serum of patient will agglutinate sheep red cell
E.there is mark plasma infiltrat in attached gingiva
it says D but could you explain a little bit

 

[sweetgal]

Thanks so much guys could you help me with this too?

WHich of the following is feature of infectious mononucleous?
A.frequently appear in old patient
B.peripheral blood shows eosinophil
C.the mortality rate is %20
D.the serum of patient will agglutinate sheep red cell
E.there is mark plasma infiltrat in attached gingiva
it says D but could you explain a little bit

yes the answer is correct,,
nonspecific serologic responses to EBV are due to the viral infection of B lymphocytes.heterophile antibodies that arise will agglutinate sheep and horse red blood cells(as measured by the classic paul bunnell test)

 

[KATIE17]

The belief that the secretion of saliva is an active process is supported by the observation that

during secretion, there is vasodilation within the gland.
during secretion, blood flow through the gland is unchanged.
during secretion, blood flow through the gland is decreased.
secretion continues even when the pressure within the salivary duct is higher than the blood pressure.**
secretion stops if the pressure within the salivary duct is the same as the blood pressure.

Vascular smooth muscle relaxes in response to

hyperoxia.
adenosine.**
vasopressin.
angiotensin.
norepinephrine.


can any please explain these answers??.

 

[docapd]

Vascular smooth muscle relaxes in response to

hyperoxia.
adenosine.**
vasopressin.
angiotensin.
norepinephrine.


ANS adenosine.it is the most imp metabolic factor that plays a role in decreasing CVR-coronary vascular resistance
IT IS A PRODUCT OF METABOLISM OF ATP

 

[sweetgal]

1.in essential hypertension , which of the following represents the classic autopsy finding in the kidney?
a.pyelonephritis
b.glemerulonephritis
c.begin nephrosclerosis
d.renal artery stenosis
e.renal infarction

2.which chemical mediator of acute inflammation is generated through the activation of an enzyme precursor that require activated hageman factor?
a.bradykinin
b.serotonin
c.histamine
d.leokotriene(LTB4)
e.prostacyclin(pgl2)

 

[sweetgal]

3.the eyelids are closed by contraction of which of the following?
a. tarsal plates
b. orbicularis oculi
c.superior and inferior recti
d.zygomalicus major and minor
e.levator palpebrae superioris

4.which of the following best describes the motor neurons that are typically found in the anterior (ventral) horn of the spinal cord?
a.bipolar
b.unipolar
c.purkinje
d.multipolar
e.pseuounipolar

5.carbon tetrachloride causes rapid injury to which of th following?
a.lung
b.liver
c.heart
d.kidney
e.bone marrow

6.which of the following represents the most reliable criterion for pathogenicity of staphylococci?
a.hemolysis
b.pigment production
c.coagulase production
d.mannitol fermentation
e.liquefaction of gelatin

7.vasodilation and increased vasopermeability lasting for several days in an area of inflarmation indicate which of the following?
a.thrombosis
b.release of bradykinin
c.hageman factor activation
d.formation of granulation tissue
e.endothelial cell damage and disruption

8.preganlionic nerve cell bodies for fibers that reach the octic ganglion are located in the
a.inferior salivatory nucleus
b.superior salivatory nucleus
c.dorsal motor nucleus of the vegus nerve
d.accessory nucleus of the oculomotor nerve
e.nucleus of the mesencephalic tract of the trigeminal nerve

 

[sweetgal]

9. a slight detatchment of the retina results in a decrease of length from the optical center, and the subject therefore exihibits
a.near slightedness
b.far slightedness
c.strabismus
d.nystagmus

10.which of the following conditions is oxygen partial pressure low in arterial blood?
a.anemia
b.polycythemia
c.pulmonary AV shunt
d.hypovolemia due to hemorrhage

11.which of the following represents the sensory organs concerned with maintenance of skeletal muscle tonus?
a.sacromeres
b.muscle spindles
c.gamma efferents
d.pacinian corpuscles
e.golgi tendon organs

12.redunced renal blood flow can cause ypertension y which of the following?
a.release of renin
b.refles vasoconstruction
c.retention of potassium in blood
d.increased output of epinephrine

 

[drkum1]

answer
1-c
2-a

1.in essential hypertension , which of the following represents the classic autopsy finding in the kidney?
a.pyelonephritis
b.glemerulonephritis
c.begin nephrosclerosis
d.renal artery stenosis
e.renal infarction

2.which chemical mediator of acute inflammation is generated through the activation of an enzyme precursor that require activated hageman factor?
a.bradykinin
b.serotonin
c.histamine
d.leokotriene(LTB4)
e.prostacyclin(pgl2)

 

[drkum1]

Answers
5-b
6-c
7-c

3.the eyelids are closed by contraction of which of the following?
a. tarsal plates
b. orbicularis oculi
c.superior and inferior recti
d.zygomalicus major and minor
e.levator palpebrae superioris

4.which of the following best describes the motor neurons that are typically found in the anterior (ventral) horn of the spinal cord?
a.bipolar
b.unipolar
c.purkinje
d.multipolar
e.pseuounipolar

5.carbon tetrachloride causes rapid injury to which of th following?
a.lung
b.liver
c.heart
d.kidney
e.bone marrow

6.which of the following represents the most reliable criterion for pathogenicity of staphylococci?
a.hemolysis
b.pigment production
c.coagulase production
d.mannitol fermentation
e.liquefaction of gelatin

7.vasodilation and increased vasopermeability lasting for several days in an area of inflarmation indicate which of the following?
a.thrombosis
b.release of bradykinin
c.hageman factor activation
d.formation of granulation tissue
e.endothelial cell damage and disruption

8.preganlionic nerve cell bodies for fibers that reach the octic ganglion are located in the
a.inferior salivatory nucleus
b.superior salivatory nucleus
c.dorsal motor nucleus of the vegus nerve
d.accessory nucleus of the oculomotor nerve
e.nucleus of the mesencephalic tract of the trigeminal nerve

 

[drkum1]

10-c
11-b
12-c

9. a slight detatchment of the retina results in a decrease of length from the optical center, and the subject therefore exihibits
a.near slightedness
b.far slightedness
c.strabismus
d.nystagmus

10.which of the following conditions is oxygen partial pressure low in arterial blood?
a.anemia
b.polycythemia
c.pulmonary AV shunt
d.hypovolemia due to hemorrhage

11.which of the following represents the sensory organs concerned with maintenance of skeletal muscle tonus?
a.sacromeres
b.muscle spindles
c.gamma efferents
d.pacinian corpuscles
e.golgi tendon organs

12.redunced renal blood flow can cause ypertension y which of the following?
a.release of renin
b.refles vasoconstruction
c.retention of potassium in blood
d.increased output of epinephrine

 

[KATIE17]

Vascular smooth muscle relaxes in response to

hyperoxia.
adenosine.**
vasopressin.
angiotensin.
norepinephrine.


ANS adenosine.it is the most imp metabolic factor that plays a role in decreasing CVR-coronary vascular resistance
IT IS A PRODUCT OF METABOLISM OF ATP

Thanks 4 d explanation docapd.

 

[fluoride]

10-c
11-b
12-c

can you explain me why the ans for 10 q.t is c

 

[braces]

👍 great thread guys,lots of information!

 

[braces]

katie where in india are u from? when r u giving ur exam? I am new to the forum and would like to get help sudying! by the way I am from india too

Yes babakkabab,
probability is definitly high and thts due to attrition or other age changes in tooth anatomy which renders pulp chamber close to the occ. surface...and tht comes under 4th point in d qustn.

My point is tht thermal shock is not the cause of decrease in size of pulp chamber "due to age" whereas d.& e are common causes.

 

[KATIE17]

Dental Pulp Tissue Is
Loose
Dense

Wht Is Sanger Procedure Of Dna Replication?

Generator Potential Of A Receptor Depends Upon-
All Or None Law
Intensity Of A Stimulus

Brochogenic Ca Wid Neoplastic Features
Small Cell
Adenoca*?

Activation Of Vit D Is Done In
Kidnet
Liver

UROLITHIASIS NOT DUE TO-
HYPERTENSION
RENAL INFECTION

following muscle keep condyle in most superioanterior postn
masseter n medial pterygoid
temporalis n lat. pterygoid

the bulk of a tooth consists of
crown
enamel
dentin
pulp

 

[Dushyant]

Dental Pulp Tissue Is
Loose
Dense
I think its dense irregular.

Wht Is Sanger Procedure Of Dna Replication?


Generator Potential Of A Receptor Depends Upon-
All Or None Law
Intensity Of A Stimulus
All or none law.

Brochogenic Ca Wid Neoplastic Features
Small Cell
Adenoca*?
Small Cell

Activation Of Vit D Is Done In
Kidnet
Liver
Kidney

UROLITHIASIS NOT DUE TO-
HYPERTENSION
RENAL INFECTION
Hypertension

following muscle keep condyle in most superioanterior postn
masseter n medial pterygoid
temporalis n lat. pterygoid
I think it shd be masseter n medial pt... 😕

the bulk of a tooth consists of
crown
enamel
dentin
pulp
DENTIN

anybody please correct me if i am wrong.

 

[docapd]

Thanks 4 d explanation docapd.

you're welcome......... 🙂

 

[docapd]

answers

9. a slight detatchment of the retina results in a decrease of length from the optical center, and the subject therefore exihibits
a.near slightedness
b.far slightedness
c.strabismus
d.nystagmus

10.which of the following conditions is oxygen partial pressure low in arterial blood?
a.anemia
b.polycythemia
c.pulmonary AV shunt
d.hypovolemia due to hemorrhage
not sure about this.

11.which of the following represents the sensory organs concerned with maintenance of skeletal muscle tonus?
a.sacromeres
b.muscle spindles
c.gamma efferents
d.pacinian corpuscles
e.golgi tendon organs

12.redunced renal blood flow can cause ypertension y which of the following?
a.release of renin
b.refles vasoconstruction
c.retention of potassium in blood
d.increased output of epinephrine

 

[sweetgal]

1.solution A has a pH of 7.0 and solution B has a ph of 6.0.both solutions are of equal volume .which of the following statements about solutions A and B is most accurate?
1.A has 1/10 as many hydrogen ions as B
2.A has 10 times more hydrogen ions than B
3.A has 7/6 of the hydrogen ion concentrations of B
4.A has 6/7 of the hydrogen ion concntration of B

 

[Dent tex]

I think the ans is 2.

1.solution A has a pH of 7.0 and solution B has a ph of 6.0.both solutions are of equal volume .which of the following statements about solutions A and B is most accurate?
1.A has 1/10 as many hydrogen ions as B
2.A has 10 times more hydrogen ions than B
3.A has 7/6 of the hydrogen ion concentrations of B
4.A has 6/7 of the hydrogen ion concntration of B

 

[sagi]

1.solution A has a pH of 7.0 and solution B has a ph of 6.0.both solutions are of equal volume .which of the following statements about solutions A and B is most accurate?
1.A has 1/10 as many hydrogen ions as B
2.A has 10 times more hydrogen ions than B
3.A has 7/6 of the hydrogen ion concentrations of B
4.A has 6/7 of the hydrogen ion concntration of B

I think the ans is 1. Higher the ph, the lesser the no. of hydrogen ions.

 

[b'lore]

1.solution A has a pH of 7.0 and solution B has a ph of 6.0.both solutions are of equal volume .which of the following statements about solutions A and B is most accurate?
1.A has 1/10 as many hydrogen ions as B
2.A has 10 times more hydrogen ions than B
3.A has 7/6 of the hydrogen ion concentrations of B
4.A has 6/7 of the hydrogen ion concntration of B

hey..
i believe,the answer is choice a.
please refer http://staff.jccc.net/PDECELL/chemistry/phscale.html

 

[RocknSun]

hey..
i believe,the answer is choice a.
please refer http://staff.jccc.net/PDECELL/chemistry/phscale.html

thanks that was informative

 

[sweet1]

1.solution A has a pH of 7.0 and solution B has a ph of 6.0.both solutions are of equal volume .which of the following statements about solutions A and B is most accurate?
1.A has 1/10 as many hydrogen ions as B
2.A has 10 times more hydrogen ions than B
3.A has 7/6 of the hydrogen ion concentrations of B
4.A has 6/7 of the hydrogen ion concntration of B

i think answer is 2

 

[sweetgal]

1.A functional deficit in the inferior oblique muscle can be revealed by asking the patient to:
a. elevate the adducted eye
b. depress the adducted eye
c. elevate the abducted eye
d. depress the abducted eye
e. depress the eye straight down

2.Parasympathetics leaving the brain on the oculomotor nerve:
a. enter the orbit through the optic canal
b. supply motor innervation to the lacrimal gland
c. synapse in the pterygopalatine ganglion
d. supply motor innervation to dilator pupillae and sphincter pupillae
e. cause constriction of the pupil and accommodation

3.Which statement about blood vessels of the brain is false:
a. the anterior cerebral artery is located in the longitudinal fissure
b. the middle cerebral artery is located in the lateral fissure
c. the superior cerebellar artery is a branch of the vertebral artery
d. the two vertebral arteries join to form the basilar artery
e. the anterior communicating artery connects the two anterior cerebral arteries

4.The tympanic membrane is usually concave externally, with a small depression in the concavity called the:
a. umbo
b. dumbo
c. rambo
d. limbo
e. Eustachio

5.Which match between a pharyngeal muscle and its origin is false:
a. superior constrictor pterygomandibular ligament
b. middle constrictor thyroid cartilage
c. inferior constrictor cricoid cartilage
d. palatopharyngeus soft palate
e. stylopharyngeus styloid process

6.Which of the following structures is not enveloped by (deep to) the prevertebral fascia:
a. vagus nerve
b. vertebral artery
c. anterior scalene muscle
d. epaxial muscles
e. the third cervical vertebra

7.Which of the following is true of the venous circulation of the head and neck:
a. the retromandibular vein often communicates with both the internal and external jugular veins
b. the facial vein drains the mandibular dental arcade
c. the anterior jugular vein is contained within the carotid sheath
d. the superior thyroid vein lies on the sternocleidomastoid muscle
e. the external jugular vein is the major source of venous drainage from the thyroid gland

 

[drkum1]

1)content of GC in DNA of algae in hot spring is?
a-normal
b-subnormal
c-high
d-intermediate

2)how would the kidney conserve cation?

 

[sweetgal]

1)content of GC in DNA of algae in hot spring is?
a-normal
b-subnormal
c-high
d-intermediate

2)how would the kidney conserve cation?

i feel the first answer is subnormal

 

[BABAK kabab]

1.a or c 😎
2.d
4.a
5.c
6.a

1.A functional deficit in the inferior oblique muscle can be revealed by asking the patient to:
a. elevate the adducted eye
b. depress the adducted eye
c. elevate the abducted eye
d. depress the abducted eye
e. depress the eye straight down

2.Parasympathetics leaving the brain on the oculomotor nerve:
a. enter the orbit through the optic canal
b. supply motor innervation to the lacrimal gland
c. synapse in the pterygopalatine ganglion
d. supply motor innervation to dilator pupillae and sphincter pupillae
e. cause constriction of the pupil and accommodation

3.Which statement about blood vessels of the brain is false:
a. the anterior cerebral artery is located in the longitudinal fissure
b. the middle cerebral artery is located in the lateral fissure
c. the superior cerebellar artery is a branch of the vertebral artery
d. the two vertebral arteries join to form the basilar artery
e. the anterior communicating artery connects the two anterior cerebral arteries

4.The tympanic membrane is usually concave externally, with a small depression in the concavity called the:
a. umbo
b. dumbo
c. rambo
d. limbo
e. Eustachio

5.Which match between a pharyngeal muscle and its origin is false:
a. superior constrictor pterygomandibular ligament
b. middle constrictor thyroid cartilage
c. inferior constrictor cricoid cartilage
d. palatopharyngeus soft palate
e. stylopharyngeus styloid process

6.Which of the following structures is not enveloped by (deep to) the prevertebral fascia:
a. vagus nerve
b. vertebral artery
c. anterior scalene muscle
d. epaxial muscles
e. the third cervical vertebra

7.Which of the following is true of the venous circulation of the head and neck:
a. the retromandibular vein often communicates with both the internal and external jugular veins
b. the facial vein drains the mandibular dental arcade
c. the anterior jugular vein is contained within the carotid sheath
d. the superior thyroid vein lies on the sternocleidomastoid muscle
e. the external jugular vein is the major source of venous drainage from the thyroid gland

 

[drkum1]

Check the explanation in 1987 bio physio paper question no 24.

can you explain me why the ans for 10 q.t is c

 

[drkum1]

1-I feel the answer is high, but not sure .
2-high H+in urine

i feel the first answer is subnormal

 

[fido!]

moving the thread to the exams and licensure forum....

 

[sweetgal]

1.Blood velocity is slowest in which of the following?
a.vein
b.venule
c.artery
d.arteriole
e.capillary

2.Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ?
a.including adenylate cyclase synthesis
b.including triglyceride lipase synthesis
c. inhibiting cyclic AMP
d.dirctly activating an intracellur protein kinase
e.enhancing the binding of epinephrine to an extracellular membrane receptor

3.reduced serum potassium (hypokalemia) might produce which of the following results?
a. reduced membrane threshold potential
b. Elevated mambrane thresold potential
c. Hyperpolarized cell membrane potential
d. Hypopolarized cell membrane potential
e. Hyperactive nuoromuscular reflexes

4.which of the following functional group are essential for a substance to act as a amphipathic (amphiphillic)molecule?
a.Polar, nonpolar
b.polar, negatively charged
c.nonpolar positively charged
d.cyclic, hydrophillic
e.Branched,hydrophillic

 

[sweetgal]

5. The primary defect in myopia is related to which of the following?
a.unequal curvature of refracting material of the cornea
b.Eyeball length relative to refractive power of the lens.
c.Defeciency of vitamin A for conversion to rhodopsin
d.loss of elasticity of crystallline lens
e.detachment of the retina

6.Atropine prevents the secretion of saliva resulting from stimulation of the chorda tympani because it ?
a.denatures the salivagland preteins
b.prevents the action of acetylcholine on the secreting cells
c.prevents release of acetylcholine by parasymphatic postganglionic fibers
d.prevents release of acetylcholine by symphatic postganglianic fibers
e.prevents release of acetlycholine in automatic ganglia

7.Total urinary nitrogen excretion in LEAST when an individual is?
a.starving
b.on a well balanced diet
c.on a diet containing adequate fat and carbohydrate but no protein
d.on a diet containing adequate pretein but no fat or carbohydrate

8.Tooth crosion bulemic patients is due to ?
a.hyposalivation
b.hypersalivation
c.action of pepsin
d.excessive fluoride intake
e.solubility hydroxyapatite in acid

9.which of the following statements BEST describe GTP-binding proteins(G-Proteins)?
a.are important components of steroid harmone signal transduction
b.catalize the reaction which produces diacylglycerol
c.are tightly bound to adenylate cyclase
d.usually inactive protein kinase C
e.are membrane proteins

10. Cortisol stimulates synthesis in the liver of
a.glucokinase
b.phosphofructokinase
c.pyruvate carboxylase
d.pyruvate kinase

 

[drkum1]

1-e

1.Blood velocity is slowest in which of the following?
a.vein
b.venule
c.artery
d.arteriole
e.capillary

2.Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ?
a.including adenylate cyclase synthesis
b.including triglyceride lipase synthesis
c. inhibiting cyclic AMP
d.dirctly activating an intracellur protein kinase
e.enhancing the binding of epinephrine to an extracellular membrane receptor

3.reduced serum potassium (hypokalemia) might produce which of the following results?
a. reduced membrane threshold potential
b. Elevated mambrane thresold potential
c. Hyperpolarized cell membrane potential
d. Hypopolarized cell membrane potential
e. Hyperactive nuoromuscular reflexes

4.which of the following functional group are essential for a substance to act as a amphipathic (amphiphillic)molecule?
a.Polar, nonpolar
b.polar, negatively charged
c.nonpolar positively charged
d.cyclic, hydrophillic
e.Branched,hydrophillic

 

[drkum1]

7-c
8-e

5. The primary defect in myopia is related to which of the following?
a.unequal curvature of refracting material of the cornea
b.Eyeball length relative to refractive power of the lens.
c.Defeciency of vitamin A for conversion to rhodopsin
d.loss of elasticity of crystallline lens
e.detachment of the retina

6.Atropine prevents the secretion of saliva resulting from stimulation of the chorda tympani because it ?
a.denatures the salivagland preteins
b.prevents the action of acetylcholine on the secreting cells
c.prevents release of acetylcholine by parasymphatic postganglionic fibers
d.prevents release of acetylcholine by symphatic postganglianic fibers
e.prevents release of acetlycholine in automatic ganglia

7.Total urinary nitrogen excretion in LEAST when an individual is?
a.starving
b.on a well balanced diet
c.on a diet containing adequate fat and carbohydrate but no protein
d.on a diet containing adequate pretein but no fat or carbohydrate

8.Tooth crosion bulemic patients is due to ?
a.hyposalivation
b.hypersalivation
c.action of pepsin
d.excessive fluoride intake
e.solubility hydroxyapatite in acid

9.which of the following statements BEST describe GTP-binding proteins(G-Proteins)?
a.are important components of steroid harmone signal transduction
b.catalize the reaction which produces diacylglycerol
c.are tightly bound to adenylate cyclase
d.usually inactive protein kinase C
e.are membrane proteins

10. Cortisol stimulates synthesis in the liver of
a.glucokinase
b.phosphofructokinase
c.pyruvate carboxylase
d.pyruvate kinase

 

[styloid]

2.Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ?
a.including adenylate cyclase synthesis
b.including triglyceride lipase synthesis
c. inhibiting cyclic AMP
d.dirctly activating an intracellur protein kinase
e.enhancing the binding of epinephrine to an extracellular membrane receptor

ans -- c
by inhibiting cyclic AMP .
Cyclic AMP-- activates protein kinase A, which subsequently activate lipases found in adipose tissue.

3.reduced serum potassium (hypokalemia) might produce which of the following results?
a. reduced membrane threshold potential
b. Elevated mambrane thresold potential
c. Hyperpolarized cell membrane potential
d. Hypopolarized cell membrane potential
e. Hyperactive nuoromuscular reflexes

ans-d

4.which of the following functional group are essential for a substance to act as a amphipathic (amphiphillic)molecule?
a.Polar, nonpolar
b.polar, negatively charged
c.nonpolar positively charged
d.cyclic, hydrophillic
e.Branched,hydrophillic
ans-a

 

[styloid]

6.Atropine prevents the secretion of saliva resulting from stimulation of the chorda tympani because it ?
a.denatures the salivagland preteins
b.prevents the action of acetylcholine on the secreting cells
c.prevents release of acetylcholine by parasymphatic postganglionic fibers
d.prevents release of acetylcholine by symphatic postganglianic fibers
e.prevents release of acetlycholine in automatic ganglia

ans-c
7.Total urinary nitrogen excretion in LEAST when an individual is?
a.starving
b.on a well balanced diet
c.on a diet containing adequate fat and carbohydrate but no protein
d.on a diet containing adequate pretein but no fat or carbohydrate
ans -a

8.Tooth crosion bulemic patients is due to ?
a.hyposalivation
b.hypersalivation
c.action of pepsin
d.excessive fluoride intake
e.solubility hydroxyapatite in acid
ans -e

9.which of the following statements BEST describe GTP-binding proteins(G-Proteins)?
a.are important components of steroid harmone signal transduction
b.catalize the reaction which produces diacylglycerol
c.are tightly bound to adenylate cyclase
d.usually inactive protein kinase C
e.are membrane proteins
ans -a

 

[orthoperio]

answers

!-a
2-b
3-c
4-a
6-a
7-a

correct me if i am wrong!!!!

1.A functional deficit in the inferior oblique muscle can be revealed by asking the patient to:
a. elevate the adducted eye
b. depress the adducted eye
c. elevate the abducted eye
d. depress the abducted eye
e. depress the eye straight down

2.Parasympathetics leaving the brain on the oculomotor nerve:
a. enter the orbit through the optic canal
b. supply motor innervation to the lacrimal gland
c. synapse in the pterygopalatine ganglion
d. supply motor innervation to dilator pupillae and sphincter pupillae
e. cause constriction of the pupil and accommodation

3.Which statement about blood vessels of the brain is false:
a. the anterior cerebral artery is located in the longitudinal fissure
b. the middle cerebral artery is located in the lateral fissure
c. the superior cerebellar artery is a branch of the vertebral artery
d. the two vertebral arteries join to form the basilar artery
e. the anterior communicating artery connects the two anterior cerebral arteries

4.The tympanic membrane is usually concave externally, with a small depression in the concavity called the:
a. umbo
b. dumbo
c. rambo
d. limbo
e. Eustachio

5.Which match between a pharyngeal muscle and its origin is false:
a. superior constrictor pterygomandibular ligament
b. middle constrictor thyroid cartilage
c. inferior constrictor cricoid cartilage
d. palatopharyngeus soft palate
e. stylopharyngeus styloid process

6.Which of the following structures is not enveloped by (deep to) the prevertebral fascia:
a. vagus nerve
b. vertebral artery
c. anterior scalene muscle
d. epaxial muscles
e. the third cervical vertebra

7.Which of the following is true of the venous circulation of the head and neck:
a. the retromandibular vein often communicates with both the internal and external jugular veins
b. the facial vein drains the mandibular dental arcade
c. the anterior jugular vein is contained within the carotid sheath
d. the superior thyroid vein lies on the sternocleidomastoid muscle
e. the external jugular vein is the major source of venous drainage from the thyroid gland

 

[orthoperio]

my answers would be :-

1.Blood velocity is slowest in which of the following?
a.vein
b.venule
c.artery
d.arteriole
e.capillary

2.Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ?
a.including adenylate cyclase synthesis
b.including triglyceride lipase synthesis
c. inhibiting cyclic AMP
d.dirctly activating an intracellur protein kinase
e.enhancing the binding of epinephrine to an extracellular membrane receptor

3.reduced serum potassium (hypokalemia) might produce which of the following results?
a. reduced membrane threshold potential
b. Elevated mambrane thresold potential
c. Hyperpolarized cell membrane potential
d. Hypopolarized cell membrane potential
e. Hyperactive nuoromuscular reflexes

4.which of the following functional group are essential for a substance to act as a amphipathic (amphiphillic)molecule?
a.Polar, nonpolar
b.polar, negatively charged
c.nonpolar positively charged
d.cyclic, hydrophillic
e.Branched,hydrophillic

 

[orthoperio]

5. The primary defect in myopia is related to which of the following?
a.unequal curvature of refracting material of the cornea
b.Eyeball length relative to refractive power of the lens.
c.Defeciency of vitamin A for conversion to rhodopsin
d.loss of elasticity of crystallline lens
e.detachment of the retina

6.Atropine prevents the secretion of saliva resulting from stimulation of the chorda tympani because it ?
a.denatures the salivagland preteins
b.prevents the action of acetylcholine on the secreting cells
c.prevents release of acetylcholine by parasymphatic postganglionic fibers
d.prevents release of acetylcholine by symphatic postganglianic fibers
e.prevents release of acetlycholine in automatic ganglia

7.Total urinary nitrogen excretion in LEAST when an individual is?
a.starving
b.on a well balanced diet
c.on a diet containing adequate fat and carbohydrate but no protein
d.on a diet containing adequate pretein but no fat or carbohydrate

8.Tooth crosion bulemic patients is due to ?
a.hyposalivation
b.hypersalivation
c.action of pepsin
d.excessive fluoride intake
e.solubility hydroxyapatite in acid

9.which of the following statements BEST describe GTP-binding proteins(G-Proteins)?
a.are important components of steroid harmone signal transduction
b.catalize the reaction which produces diacylglycerol
c.are tightly bound to adenylate cyclase
d.usually inactive protein kinase C
e.are membrane proteins

10. Cortisol stimulates synthesis in the liver of
a.glucokinase
b.phosphofructokinase
c.pyruvate carboxylase
d.pyruvate kinase

correct me if i am wrong

 

[docapd]

10. Cortisol stimulates synthesis in the liver of
a.glucokinase
b.phosphofructokinase
c.pyruvate carboxylase
d.pyruvate kinase


ISN'T GLUCOKINASE STIMULATED BY INSULIN??? 😕

 

[styloid]

orthoperio

6.Atropine prevents the secretion of saliva resulting from stimulation of the chorda tympani because it ?
a.denatures the salivagland preteins
b.prevents the action of acetylcholine on the secreting cells
c.prevents release of acetylcholine by parasymphatic postganglionic fibers
d.prevents release of acetylcholine by symphatic postganglianic fibers
e.prevents release of acetlycholine in automatic ganglia

chorda tymphani --- is giving u the clue over here ---- so i guess the answer should be c (parasympathetic post ganglionic fibers )


.reduced serum potassium (hypokalemia) might produce which of the following results?
a. reduced membrane threshold potential
b. Elevated mambrane thresold potential
c. Hyperpolarized cell membrane potential
d. Hypopolarized cell membrane potential
e. Hyperactive nuoromuscular reflexes

can u please explain why have u selected hyperpolarized ???

 

[minali]

potassium are required during depolarisation so reduced conc will leave the membrane in hyperpolarised state.

 

[mam6701e]

9.which of the following statements BEST describe GTP-binding proteins(G-Proteins)?
a.are important components of steroid harmone signal transduction
b.catalize the reaction which produces diacylglycerol
c.are tightly bound to adenylate cyclase
d.usually inactive protein kinase C
e.are membrane proteins

answ: b

 

[mam6701e]

Anwers

9.which of the following statements BEST describe GTP-binding proteins(G-Proteins)?
a.are important components of steroid harmone signal transduction
b.catalize the reaction which produces diacylglycerol
c.are tightly bound to adenylate cyclase
d.usually inactive protein kinase C
e.are membrane proteins

answ: c or e???

10. Cortisol stimulates synthesis in the liver of
a.glucokinase
b.phosphofructokinase
c.pyruvate carboxylase
d.pyruvate kinase

answ:c....for sure 😛