1. The internal vertebral venous plexus communicates with:
a) Vertebral bone marrow
b) Segmental veins
c) Intracranial sinuses
d) All the above
2. Inferior cerebral veins terminate in the:
a) Transverse sinus
b) Cavernous sinus
c) Sigmoid sinus
d) Great cerebral vein
3. The subarachnoid space reaches to vertebral level:
a) T12 or L1
b) L1 or L2
c) L4 or L5
d) S2
4. A disc prolapse at L5 level, in the usual position of extrusion,
may compress:
a) L3,4 and 5 nerve roots
b) L4 roots
c) L5 roots
d) S1 roots
5. In eliciting a tendon reflex, the sequence of neurones
activated is:
a) Tendon afferent, internuncial, alpha efferent
b) Spindle afferent, internuncial, alpha efferent
c) Spindle afferent, internuncial, gamma efferent
d) Spindle afferent, alpha efferent
6. Commonest level of termination of the adult spinal cord:
a) T12-L1 disc
b) L1-L2 disc
c) L3-L4 disc
d) L5-S1 disc
7. The cell in the CNS most like the Schwann cell in function is
the:
a) Fibrous astrocyte
b) Protoplasmic astrocyte
c) Microglial cell
d) Oligodendrocyte
8. In the CNS, portions of first order sensory neurones are
found:
a) In the posterior white columns
b) In the posterolateral tract of Lissauer
c) In the lateral white columns
d) Two of the above
9. The sacral segments of the spinal cord may be crushed by
fracture of:
a) The first lumbar vertebra
b) The third lumbar vertebra
c) The fifth lumbar vertebra
d) The first and second sacral vertebrae
10. Axons from the nucleus ambiguus innervate muscles of the:
a) Eye
b) Tongue
c) Larynx
d) Ear