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.Management Sciences
Category: Central Nervous System
First change to occur in the distal segment of cut________________?
A. Myelin degeneration
B. Axonal degeneration
C. Mitosis of schwann cell
D. Sprouting
Aphasia is most likely associated with a lesion in_______________?
A. Broca’s area
B. Sensory area
C. Primary motor area
D. Visual area
Sweat glands are supplied by only_______________?
A. Parasympathetic nerves
B. Sympathetic nerves
C. Sensory nerves
D. Motor nerves
Intention tremor is a feature of _______________?
A. Loss of function of Thalamus
B. Loss of function of Hypothalamus
C. Loss of function of cerebellum
D. Loss of function of Basal ganglia
In nerve , the magnitude of the action potential overshoot is normally a function of the______________?
A. Magnitude of the stimulus
B. Intracellular potassium concentration
C. extracellular sodium concentration
D. resting membrane potential
Voluntary movement of eye ball is controlled by______________?
A. Superior colliculus
B. Frontal eye field
C. Cerebellum
D. Visual cortex area
Pain is conducted by________________?
A. A-alpha fibers
B. A-beta fibers
C. A-gamma fibers
D. A-delta fibers
DOPA and 5 – Hydroxytryptophan are clinically important because______________?
A. They cross Blood Brain Barriers
B. They are acidic precursors of Brain amines
C. They act as neuromodulators
D. They are metabolites of various neurogentic amines .
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