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Chapter 35: Q. 33 (page 1016)

What are the main differences between the sympathetic and parasympathetic branches of the autonomic nervous system?

Short Answer

Expert verified

The sympathetic nervous system is involved in fight and flight situations where as the parasympathetic nervous system brings the body to a rest or digest state.

Step by step solution

01

Step 1. Introduction

The autonomic nervous system or ANS is referred to as the vegetative nervous system, which controls the muscles of internal organs such as the heart, stomach, intestine, and glands.

02

Step 2. Explanation

The difference between the sympathetic and parasympathetic nervous systems are as follows:

Sympathetic nervous system:

  • It is involved in fight and flight response and prepares the body for potential danger.
  • It has a faster response time as it has shorter neurons.
  • It increases heartbeats and muscles tense up.

Parasympathetic nervous system:

  • It allows the body to rest or digest and maintain homeostasis.
  • Its aim is to bring the body to a calm state.
  • It decreases heartbeat and muscles relax.

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