Organisation of the PNS

Q.

Distinguish between the peripheral and the central nervous system.

Q.

The __________ nerves carry impulses from the brain to the sense organs.

Q. Efferent nerve fibres conduct nerve impulses from the CNS to the effector organs such as muscles and glands.

1. False
2. True

Q.

Differentiate between the following :

Sensory nerve fibre and motor nerve fibre

Q. By which nervous system and of what type, the blood is supplied into visceral organs?

1. Sympathetic Nervous System, voluntary
2. Sympathetic Nervous System, involuntary
3. Parasympathetic Nervous System, involuntary
4. Both SNS and PNS, involuntary

Q.

Name an event that can causes the release of the atrial natriuretic factor.

Q.

Differentiate between the following:

Sensory nerves and motor nerves

Q. Sympathetic nerve accelerates heart beat due to

1. Adrenaline
2. nor - adrenaline
3. Insulin
4. Glucagon

Q.

Sympathetic nervous system stimulation _____.

1. Increases blood glucose, decreases GI peristalsis, increases heart rate and BP.

2. Decreases blood glucose, increases GI peristalsis, decreases heart rate and BP.

3. Increases blood glucose, increases GI peristalsis, decreases heart rate and BP.

4. Decreases blood glucose, decreases GI peristalsis, decreases heart rate and BP.

Q.

Regarding the Assertion and Reason, choose the correct option:

Assertion [A] : Sympathetic and Parasympathetic systems have opposing functions.

Reason [R] : The sympathetic nervous system ‘prepares you’ for action, while the parasympathetic system ‘calms you’ down after action.

1. Assertion [A] is True and Reason [R] is False.

2. Reason [R] is True and Assertion [A] is False.

3. Assertion [A] is True and Reason [R] is True and is a correct explanation to [A].

4. Assertion [A] is True and Reason [R] is True but is incorrect explanation to [A].

Q. The flowchart given here shows functional organisation of the human neural system. Identify A to E and select the correct option

1. A - PNS, B - CNS, C - ANS, D - Sympathetic neural system, E - parasympathetic neural system
2. A - ANS , B - CNS , C - PNS, D - parasympathetic neural system E - Sympathetic neural system
   
3. A - CNS , B - PNS , C - ANS, D - Sympathetic neural system, E - parasympathetic neural system
4. A - ANS , B - PNS , C - CNS, D - Sympathetic neural system, E - parasympathetic neural system

Q. Identify the effects of the sympathetic nervous system.

1. Dilates bronchi
2. High heart rate
3. Less saliva
4. More digestion
5. No adrenaline
6. Relaxed bladder
7. Pupil constricts
8. Relaxed airways

Q.

List any two functions of the nervous system.

Q.

Regarding the Assertion and Reason, choose the correct option:

Assertion [A]: The Peripheral Nervous System (PNS) constitutes all the nerves and ganglia that lie outside the Central Nervous System (CNS) and connects the extremities of the body to the CNS.

Reason [R]: The CNS is responsible for all the information processing and control.

1. Assertion [A] is True and Reason [R] is False.

2. Reason [R] is True and Assertion [A] is False.

3. Assertion [A] is True and Reason [R] is True and is a correct explanation to [A].

4. Assertion [A] is True and Reason [R] is True but is incorrect explanation to [A].

Q.

The nervous system which is entirely motor and operates without conscious control is

1. Central nervous system

2. Autonomic nervous system

3. Somatic nervous system

4. None of the above