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Metabolizes body systems during activity
(See individual roles in the diagram above)

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Conserves energy
Promotes house keep functions during rest
(See individual roles in the diagram above)

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composed of visceral motor nerve
which regulate the activity of smooth muscles, cardiac muscles, and glands.
Voluntary or involuntary
Involuntary.

Has 2 functional subdivisions which work in opposition of each other. Whatever one stimulates the other inhibits.

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composed of motor nerve fibers that control impulses from the CNS to skeletal muscles.
Voluntary or involuntary?
Voluntary.

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-conveys impulses to the CNS from the sensory receptors

-It is made up of the somatic and visceral sensory nerve fibers
What are somatic sensory fibers?
Sensory fibers are impulses from the skin, skeletal muscles, and joints.
What are visceral sensory fibers?
Visceral sensory fibers are impulses from organs within the ventral body cavity.

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transmits signal from the CNS to the effector organs. In other words they bring about a motor response.
What are 2 examples of effector organs?
Two examples include muscles and glands.

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Where is it in relation to the CNS?
It is outside of the CNS.
The PNS consists mainly of spinal and cranial nerves
What are spinal nerves?
The nerves that carry impulse to and from the spine.
What are cranial nerves ?
The nerves that carry impulse to and from the brain.

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What are the 2 major parts?
The two major parts are the brain and spinal cord.
What cavity does it occupy?
The dorsal body cavity.
Which of the 3 functions, sensory input, integration or motor input, is the CNS responsible for?
All 3.