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Negative Feedback Mechanism for RAAS

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Question

What is the effect of the sympathetic nervous system on heart beat?

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Solution

Sympathetic nervous system:
It is a component of the autonomic nervous system.
It controls and regulates various involuntary actions in our body.
It causes the heart beat to accelerate.

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What effect do the sympathetic nervous system and parasympathetic system have on the body ?

Q. Assertion: Effect of sympathetic nervous system is excitatory in order to meet an emergency.
Reason: Sympathetic nervous system is a division of the autonomic nervous system.

Q. Which one of the following is not an effect of sympathetic nervous system?

Q. Identify the effects of the sympathetic nervous system.

Q. Given below is a table comparing the effects of sympathetic and parasympathetic nervous system for four features. Which one feature is correctly described?

	Feature	Sympathetic Nervous Sytem	Parasympathetic Nervous System
(a)	Salivary gland	Stimulates secretion	Inhibits secretion
(b)	Pupil of the eye	Dilate	Constricts
(c)	Heart rate	Decreases	Increases
(d)	Intestinal peristalsis	Stimulates	Inhibits

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