About 80% of the Neurons Contained in the Central Nervous

question 81

Multiple Choice

About 80% of the neurons contained in the central nervous system are located in the .

• A) cerebral cortex
• B) brain stem
• C) midbrain
• D) basal ganglia

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Definitions:

Autonomic

Pertaining to the part of the nervous system that controls involuntary actions of the muscles and glands.

Somatic

Pertaining to the body, especially as distinct from the mind or spirit, often in context with sensory experiences or the voluntary nervous system.

Parasympathetic Nervous System

A division of the autonomic nervous system responsible for stimulating "rest and digest" activities, slowing down the heart rate, and increasing intestinal and gland activity.

Sympathetic Nervous System

Part of the autonomic nervous system that prepares the body for physical activity by increasing heart rate, constricting blood vessels, and raising blood pressure, among other functions.