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Important questions on Human Neural System

Stimulation of sympathetic nervous system causes

A
Constriction of blood vessels and high blood pressure
B
Dilation of bronchi and pupil
C
Erection of hair
D
All of the above
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Conservation of energy take place by 

A
Sympathetic autonomic nervous system
B
Parasympathetic autonomic nervous system
C
Reflex action
D
None of the above
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The sympathetic nervous system (S.N.S) work through secretion of 

A
Noradrenaline, which stimulates the organ
B
Acetyl choline, which stimulates the organ
C
Adrenaline, which inhibits the organ
D
Both A and B
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Spot out the parasympathetic effect from the following.

A
Increasing blood pressure
B
Dialating pupil
C
Secretion of digestive juice
D
Increasing cardiac output
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Constriction of the pupil is function of

A
Parasympathetic system
B
Hypothalamus
C
Thalamus
D
None of the above
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Parasympathetic system causes

A
Inhibition of sweat glands
B
Constriction of pupil in bright light
C
Increase in rate of respiration
D
Increase in heart beat
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Autonomic nervous system controls

A
Conditioned reflexes
B
Functioning of spinal cord
C
Functioning of visceral organs
D
Reflex actions
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If parasympathetic nerve of the rabbit is cut, then heart beat

A
Remains unaffected
B
Decreases
C
Increases
D
Stops
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A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neurohormonal control system?

A
Hypothalamus activates the parasympathetic division of brain
B
Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex
C
Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla
D
GABA neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse
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