please quick guys help m !!

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passiondentistr

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if the tip of the tongue is hit by a bur , what is damaged ?
mesial cervical line of max 1 premolar is similar to ?
where is mesial furcation found in maxillary teeth?
hyperosmolar urine is found is ? superior/inferior region of renal medulla
where r goblet cells absent?
less diffusible in the cells ? urea or sodium
 
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if the tip of the tongue is hit by a bur , what is damaged ?
mesial cervical line of max 1 premolar is similar to ?
where is mesial furcation found in maxillary teeth?
hyperosmolar urine is found is ? superior/inferior region of renal medulla
where r goblet cells absent?
less diffusible in the cells ? urea or sodium


Ans: tip of tongue deep lingual artery
goblet cells absent in appendix
sodium is least diffusible
 
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if the tip of the tongue is hit by a bur , what is damaged ?
deep lingual vein

mesial cervical line of max 1 premolar is similar to ?
distal of canine
where is mesial furcation found in maxillary teeth?
hyperosmolar urine is found is ? superior/inferior region of renal medulla
where r goblet cells absent? appendix
less diffusible in the cells ? urea or sodium
 
during a normal resting state maximum blood supply to the coronary arteries occurs when
1)early diastole
2) late diastole
where does glucose entrapment in a cell occur?
 
1) The outermost portion of a nerve fiber is commonly refered to as the
1.axolemma
2.neurolemma
3.perineurium
4.myelin sheath
5.medulary sheath

2)Hypomineralized structures which extend from the dentinoenamel junction to the surface of the enamel are called
1.enamel rods
2.enamel lamellae
3.enamel spindles
4.Hunter-Schreger bands
5.incremental lines of Retzius
 
1) All of the following structures may be found in oral mucous membrane EXCEPT
1.basal lamina
2.lamina propria
3.muscularis mucosae
4.keratohyaline granules
5.stratified squamous epithelium

2)Progesterone production in the ovary is primarily by
1.stroma
2.corpora lutea
3.mature follicles
4.corpora albicans
5.growing follocles

3) Reversal lines which may be seen on the cribriform plate (alveolar bone proper) of the alveolar process indicate the cessation of
1.osteoblastic activity
2.osteoclastic activity
3.myeloid activity
4.healing activity
 
) All of the following structures may be found in oral mucous membrane EXCEPT
1.basal lamina
2.lamina propria
3.muscularis mucosae
4.keratohyaline granules
5.stratified squamous epithelium

2)Progesterone production in the ovary is primarily by
1.stroma
2.corpora lutea
3.mature follicles
4.corpora albicans
5.growing follocles

3) Reversal lines which may be seen on the cribriform plate (alveolar bone proper) of the alveolar process indicate the cessation of
1.osteoblastic activity
2.osteoclastic activity
3.myeloid activity
4.healing activity
user_offline.gif
 
2)Hypomineralized structures which extend from the dentinoenamel junction to the surface of the enamel are called
1.enamel rods
2.enamel lamellae
3.enamel spindles
4.Hunter-Schreger bands
5.incremental lines of Retzius
 
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1) The outermost portion of a nerve fiber is commonly refered to as the
1.axolemma
2.neurolemma
3.perineurium
4.myelin sheath
5.medulary sheath

2)Hypomineralized structures which extend from the dentinoenamel junction to the surface of the enamel are called
1.enamel rods
2.enamel lamellae <<--
3.enamel spindles
4.Hunter-Schreger bands
5.incremental lines of Retzius

dont know the answer for 1
 
1) The outermost portion of a nerve fiber is commonly refered to as the
1.axolemma
2.neurolemma- ans
3.perineurium
4.myelin sheath
5.medulary sheath

2)Hypomineralized structures which extend from the dentinoenamel junction to the surface of the enamel are called
1.enamel rods
2.enamel lamellae
3.enamel spindles- ans
4.Hunter-Schreger bands
5.incremental lines of Retzius

The medullated fibers form the white part of the brain and medulla spinalis, and also the greater part of every cranial and spinal nerve, and give to these structures their opaque, white aspect. When perfectly fresh they appear to be homogeneous; but soon after removal from the body each fiber presents, when examined by transmitted light, a double outline or contour, as if consisting of two parts The central portion is named the axis-cylinder; around this is a sheath of fatty material, staining black with osmic acid, named the white substance of Schwann or medullary sheath, which gives to the fiber its double contour, and the whole is enclosed in a delicate membrane, the neurolemma, primitive sheath, or nucleated sheath of Schwann
Fig: http://www.bartleby.com/107/illus632.html
Structure of the Peripheral Nerves and Ganglia.—The cerebrospinal nerves consist of numerous nerve fibers collected together and enclosed in membranous sheaths. A small bundle of fibers, enclosed in a tubular sheath, is called a funiculus; if the nerve is of small size, it may consist only of a single funiculus; but if large, the funiculi are collected together into larger bundles or fasciculi, which are bound together in a common membranous investment. In structure the common membranous investment, or sheath of the whole nerve (epineurium), as well as the septa given off from it to separate the fasciculi, consist of connective tissue, composed of white and yellow elastic fibers, the latter existing in great abundance. The tubular sheath of the funiculi (perineurium) is a fine, smooth, transparent membrane, which may be easily separated, in the form of a tube, from the fibers it encloses; in structure it is made up of connective tissue, which has a distinctly lamellar arrangement. The nerve fibers are held together and supported within the funiculus by delicate connective tissue, called the endoneurium. It is continuous with septa which pass inward from the innermost layer of the perineurium, and shows a ground substance in which are imbedded fine bundles of fibrous connective tissue running for the most part longitudinally. It serves to support capillary vessels, arranged so as to form a network with elongated meshes. The cerebrospinal nerves consist almost exclusively of medullated nerve fibers, only a very small proportion of non-medullated being present.

Fig: http://www.bartleby.com/107/illus636.html