Questions

[rturgay]

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4. Which of the following represents a well-vascularized structure in the temporomandibular joint?

A. Retrodiscal tissues
B. Fibrous covering of the condyle
C. Central portion of the articular disc
D. Fibrous covering of the articular eminence
E. Fibrous covering of the condylar surface

Which of the following structures contains both ascending and descending fibers to/frm cerebral cortex?

A. ventral pons
B. pyramidal tracts
C. medial lemniscus
D internal capsule
E medial forebrain bundle

Which of the following represents primary function of lysosome in steroid producing cell?

A. digest cellular debris
B. hydrolyze spent cellular organelles
C. remove excess steroids from the cell
D. remove steroid precursors from the cell
E. cleave the ester from cholesterol ester to produce free cholesterol


polymerisation of molecules into collagen fibrils occurs in the
A.ribosomes
b.lysosomes
C. extracellular space
D. rough endo plasmic reticulum
E. smooth endoplasmic reticulum

injury of spinal accessory , while in posterior triangle, will cause paralysis of the
A. platysma
B. trapezius
C.splenius capitus
D. sternocleidomastoid
E. inferior belly of omohyoid

 

[Typo]

4. Which of the following represents a well-vascularized structure in the temporomandibular joint?

A. Retrodiscal tissues
B. Fibrous covering of the condyle
C. Central portion of the articular disc
D. Fibrous covering of the articular eminence
E. Fibrous covering of the condylar surface

A is the answer. You might also see this written as "bilaminar disc" - they're both the same thing, and it's the most vascularized part of the TMJ.

Which of the following structures contains both ascending and descending fibers to/frm cerebral cortex?

A. ventral pons
B. pyramidal tracts
C. medial lemniscus
D internal capsule
E medial forebrain bundle

D is the answer. The pyramidal tracts only descend; the medial lemniscus only ascends.

Which of the following represents primary function of lysosome in steroid producing cell?

A. digest cellular debris
B. hydrolyze spent cellular organelles
C. remove excess steroids from the cell
D. remove steroid precursors from the cell
E. cleave the ester from cholesterol ester to produce free cholesterol

My guess is B, the same function as in any other cell. I'm not positive on this one though.

polymerisation of molecules into collagen fibrils occurs in the
A.ribosomes
b.lysosomes
C. extracellular space
D. rough endo plasmic reticulum
E. smooth endoplasmic reticulum

The answer is C. Collagen molecules are produced, hydroxylated, and glycosylated inside of the cell. The molecules finally polymerize into actual collagen fibers outside of the cell.

injury of spinal accessory , while in posterior triangle, will cause paralysis of the
A. platysma
B. trapezius
C.splenius capitus
D. sternocleidomastoid
E. inferior belly of omohyoid

No clue on this one. Sorry!

 

[rturgay]

A is the answer. You might also see this written as "bilaminar disc" - they're both the same thing, and it's the most vascularized part of the TMJ.D is the answer. The pyramidal tracts only descend; the medial lemniscus only ascends.My guess is B, the same function as in any other cell. I'm not positive on this one though.The answer is C. Collagen molecules are produced, hydroxylated, and glycosylated inside of the cell. The molecules finally polymerize into actual collagen fibers outside of the cell.No clue on this one. Sorry!

thnx typo
do u have anyidea about this one?
130. Which of the following enzymes synthesizes polynucleotide chains from nucleotides and does NOT required a primer chain?

A. Ligase
B. Exonuclease
C. Endonuclease
D. DNA polymerase
E. RNA polymerase
😕

 

[Typo]

thnx typo
do u have anyidea about this one?
130. Which of the following enzymes synthesizes polynucleotide chains from nucleotides and does NOT required a primer chain?

A. Ligase
B. Exonuclease
C. Endonuclease
D. DNA polymerase
E. RNA polymerase
😕

It's RNA polymerase. In fact, it's actually a certain RNA polymerase that provides the primer required for DNA polymerase to latch on and begin replication; it can do this because RNA polymerase requires no primer itself.

 

[dentethic]

A is the answer. You might also see this written as "bilaminar disc" - they're both the same thing, and it's the most vascularized part of the TMJ.D is the answer. The pyramidal tracts only descend; the medial lemniscus only ascends.My guess is B, the same function as in any other cell. I'm not positive on this one though.The answer is C. Collagen molecules are produced, hydroxylated, and glycosylated inside of the cell. The molecules finally polymerize into actual collagen fibers outside of the cell.No clue on this one. Sorry!

injury of spinal accessory , while in posterior triangle, will cause paralysis of the
A. platysma
B. trapezius
C.splenius capitus
D. sternocleidomastoid
E. inferior belly of omohyoid

I think it's B.trapezius as it is being supplied by accessory nerve

 

[Typo]

injury of spinal accessory , while in posterior triangle, will cause paralysis of the
A. platysma
B. trapezius
C.splenius capitus
D. sternocleidomastoid
E. inferior belly of omohyoid

I think it's B.trapezius as it is being supplied by accessory nerve

The sternocleidomastoid is also supplied by the accessory nerve. I think you're right, though - the fibers that go specifically to the trapezius are in the posterior triangle.

 

[aphistis]

injury of spinal accessory , while in posterior triangle, will cause paralysis of the
A. platysma
B. trapezius
C.splenius capitus
D. sternocleidomastoid
E. inferior belly of omohyoid

I think it's B.trapezius as it is being supplied by accessory nerve

It's trapezius. If you're in the posterior cervical triangle, by definition you're behind the sternocleidomastoid (which defines the anterior border of the posterior triangle).