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Afferent and Efferent Axons Travel Together in Spinal Nerves, but They

question 116

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Afferent and efferent axons travel together in spinal nerves, but they separate into different bundles when they leave and enter the spinal cord. The afferent axons enter the spinal cord via the______ root and efferent axons leave the spinal cord via the______root.


Definitions:

Sympathetic Division

A part of the autonomic nervous system that prepares the body for physical activity by accelerating heart rate, constricting blood vessels, and raising blood pressure.

Autonomic Nervous System

A system that is in charge of the body’s automatic functions, such as the respiratory and gastrointestinal systems.

Norepinephrine

A neurotransmitter released by sympathetic neurons onto organs and glands for fight-or-flight (stressful) situations.

Acetylcholine

A neurotransmitter in the nervous system that plays a critical role in muscle activation and memory formation.

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