Anatomy Questions and Answers Part-20

1. A classical sign of cerebellar disease:
a) Rigidity
b) Short, shuffling gait
c) Loss of 'joint sense'
d) Intention tremor

Answer: d

2. Tract which is small or absent in humans:
a) Rubrospinal
b) Tectospinal
c) Vestibulospinal
d) Olivospinal

Answer: a

3. A midline nucleus in the medulla oblongata:
a) Hypoglossal nucleus
b) Nucleus ambiguus
c) Dorsal vagal nucleus
d) Nucleus raphe magnus

Answer: d

4. The cerebellum sends efferent fibres to each of the following, except:
a) The red nucleus of the opposite side
b) The thalamus of the opposite side
c) Reticular formation
d) The substantia nigra

Answer: d

5. The structure closest to the crus cerebri is the:
a) Substantia nigra
b) Red nucleus
c) Medial lemniscus
d) Opposite crus

Answer: a

6. The cerebral aqueduct (of Sylvius) connects:
a) The lateral ventricles
b) Lateral and third ventricles
c) Third and fourth ventricles
d) Fourth ventricle and subarachnoid space

Answer: c

7. The following structure occupies the floor of the temporal horn of the lateral ventricle:
a) Stria vascularis
b) Calcaravis
c) Diagonal band of Broca
d) Hippocampus

Answer: d

8. The interventricular foramen of Monro connects:
a) The two lateral ventricles
b) Lateral ventricle with third ventricle
c) Third and fourth ventricles
d) Fourth ventricle with subarachnoid space

Answer: b

9. Betz cells constitute the following percentage of the corticospinal tract neurones:
a) 0
b) 3
c) 10
d) 50

Answer: b

10. The cms cerebri contains:
a) Medial lemniscus
b) Spinothalamic tract
c) Temporopontine fibres
d) Lateral lemniscus

Answer: c