2. Write out the production and circulation of aqueous humor. 3. write out the walls of the tympanic cavity. 4. Write out the divisions of the internal ear.
5. write the names and positions of the hearing and equilibrium receptors
CENTRAL NERVE SYSTEM
Single Choice Questions of central nervous system to top
1． The subarachnoid space. ends inferiorly in the adult at the level of: C A. the coccyx
B. the lower border of Ll C. S2 D. S5
E. the promontory of the sacrum
2. The nerve going with internal carotid a. pass through the cavernous sinus is C A. optic n.
B. occumolar n. C. abducent n.
D. ophthalmic n. of trigeminal n. E. trochlear n.
3. The structures passing through the lateral wall of cavernous sinus include (BCD) A. B. C. D. E. 4. A. B. C. D. E. 2. A. B. C.
optic n.
oculomotor n. trochlear n. ophthalmic n. abducent n.
The middle meningeal artery arise from D external carotid a. internal carotid a. superficial temporal a. maxillary a. facial a.
All of the following are characteristics of the dural venous sinuses, EXCEPT: B They terminate directly or indirectly in the internal jugular vein. They lie between the dura and the arachnoid mater. Blood from diploic veins drains into them.
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D. E. 3. A. B. C. D. E.
They connect with valveless veins outside the cranial cavity. They receive venous draining of the brain
The filum terminale interum is a continuation of the: E denticulate ligament coccygeal ligament dura mater arachnoid pia mater
Central nervous system
Introduction of nervous system
Single choice questions
1.Millions of sensory receptors detect ________, which come from the inside and outside the body(D). A. neuron B. skin C. motor D. stimuli E. effector
2. One of the three basic parts of a neuron is the(A) A. axon B. myelin C. pons
D. dura mater E. endoneurium
3. The folowing structures which contain only afferent fibers, long dendrites of sensory neurons.(B) A. Cranial nerves B. Sensory nerves C. Motor nerves D. Mixed nerves E. visceral nerves
Spinal cord
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1.Like the brain, the spinal cord is surrounded by bone, meninges, and(A)
A. cerebrospinal fluid B. white matter C. gray matter D. water
E. endolymph
2. Concerning the spinal cord, which is false?(E) A. is located in the vertebral canal B. extends from the foramen magnum C. continues with the medulla oblongata
D. occupies the entire length of the vertebral canal in the third month of fetal life E. its diameters are equal at various levels
3. In adult, T4 spinal segment is located at the level of vertebra(D) A. C7 B. T1 C. T2 D. T3 E. T4
4. Regarding the anterior horn of the spinal cord(A) A. there are two kinds of motor neurons
B. the lateral nuclear group is almost present in most segments of the spinal cord
C. the medial nuclear group is prominent in the segments of the cervical and lumbosacral enlargments
D. the medial nuclear group supplies the muscles of the limbs E. the lateral nuclear group supplies the muscles of the trunk 5. The internal structure of the spinal cord, which is false(E) A. consists of the grey matter and the white matter B. the grey matter forms a butterfly-shaped
C. from the first thoracic to the first lumbar segments, there is a lateral columns D. the grey commissure connects the grey matter of two sides
E. the central canal communicates directly with the third ventricle
6. Which tract in the spinal cord has somatotopical arrangement from medical to lateral in sacral, lumbar , thoracic , and cervical order(A) A. fasciculus gracilis and fasciculus cuneatus B. posterior fasciculus proprius
C. anterior and lateral corticospinal tract D. anterior and lateral spinothalamic tract E. anterior and posterior spinocerebellar tract 7. The ascending tract in the spinal cord is (A) A. spinothalamic tract
B. anterior corticospinal tract C. lateral corticospinal tract D. rubrospinal tract E. vestibulospinal tract 8. The fasciculus gracilis(A)
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A. extends the whole length of the spinal cord
B. lies in the lateral part of the posterior funiculus
C. transmits the proprioceptive sensation of the contralateral lower limb D. transmits the proprioceptive sensation of bilateral lower limb
E. transmits the proprioceptive sensation of homolateral trunk and limbs 9. The lower end of the spinal cord in adult is at the level of(C)
A. the lower border of the 12th thoracic vertebra B. the upper border of the 1st lumbar vertebra C. the lower border of the 1st lumbar vertebra D. the upper border of the 2nd lumbar vertebra E. the lower border of the 2nd lumbar vertebra 10. Fasciculus cuneatus(E)
A.conducts proprioceptive sensation of lower limb B.conducts fine touch sensation of lower limb C.arises from the posterior horn of spinal cord D.arises from the cuneate nucleus E.terminates on the cuneate nucleus
11. Which is wrong about anterior horn of spinal cord(A) A.consists of the sensory neuron B.consists of the motor neuron
C.its neuron axon passes through the anterior root of spinal nerve D.innervates the skeletal muscle E.is innervated by corticospinal tract 12. Fasciculus gracilis comes from(C) A.gracile nucleus B.dorsal thalamus C.spinal ganglion D.trigeminal ganglion E.paravertebral ganglion
13. Which segment of the spinal cord conducts the skin sensation at the level of umbilicus(D) A.the 4th thoracic segment B.the 6th thoracic segment C.the 8th thoracic segment D.the 10th thoracic segment E.the 12th thoracic segment
Multiple Choice Questions (choose 2 or more correct answers) to top
1.At the level of the tenth segment of spinal cord, there are(ABDE)
A.fasciculus gracilis B.lateral column C.fasciculus cuneatus
D.lateral corticospinal tract E.spinothalamic tract
2.The descending tracts in the spinal cord include(ACDE)
A. corticospinal tract B. spinothalamic tract C. rubrospinal tract
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