Summary QUESTION AND ANSWERS ON THE CENTRAL NERVOUS SYSTEM

CENTRAL NERVOUS SYSTEM

1. All of the following reflexes are monosynaptic except:

a) The knee jerk

b) The biceps jerk

c) The triceps jerk

d) The abdominal reflex

e) The supinator reflex

ANS D



2. The following is true regarding the muscle spindle:

a) Acts as a receptor for only monosynaptic reflexes

b) Has gamma nerve fibers as afferents

c) Has Beta B fibers as efferent ts

d) Is stimulated by touching the muscle fibers

e) Acts as a receptor for pressure stimuli

ANS C



3. Medullary postural reflexes include:

a) The positive supporting reaction

b) The placing reaction

c) The tonic neck reflex

d) The stretch reflex

ANS C

, 4. The following is true about the basal ganglia:

a) Control balance

b) Control equilibrium

c) Control conjugate eye movement

d) Initiate movement

e) In disease, power is lost

ANS D



5. Concerning cerebellar disorders:

a) Tone increases

b) Reflexes are exaggerated

c) The gait becomes wide-base

d) Consciousness is lost

e) Sever memory loss might follow

ANS C



6. Pain sensation:

a) Is not a good sign

b) It’s a perception occurs in the hypothalamic nuclei

c) Fast pain is carried by the C-Fibers

d) Referred pain is usually from somatic to visceral receptors

e) Its receptors are free nerve endings

ANS A