Nervous System Question And Answers

Nervous System

Question 1. Define the nervous system and list its functions.
Answer.

The nervous system is the most complicated, widely investigated, and least understood system of the body. It controls all the other systems of the body. Hence, it is also called the master system of the body.

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Nervous System Functions

• Provides information on the internal and external environment.
• Integrates and processes sensory information.
• Controls motor activities of the body.
• Assimilates experience.
• Responsible for memory, learning, and intelligence.

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Question 2. What are the various types of fibers present in a typical spinal nerve?
Answer.

The following four types of fibers are present in a typical spinal nerve:

• Somatic of event fibers, which supply the skeletal muscles.
• Somatic of event fibers, which carry general and proprioceptive sensations from the skin, joints, and muscles.

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• Visceral of event fibers, which supply the smooth muscles of viscera, blood vessels, and glands.
• Visceral of event fibers, which carry proprioceptive sensations from viscera, blood vessels, and glands.