Overview
The Peripheral Nervous System (PNS) plays a vital role in connecting the central nervous system to the rest of the body. It consists of sensory and motor neurons that facilitate communication between the brain, spinal cord, and limbs. Understanding the structure and function of the PNS is essential ...
Key Terms
Example: The PNS includes all the nerves that branch out from the spinal cord.
Example: Myelinated fibers conduct impulses faster than unmyelinated fibers.
Example: Sensory neurons help you feel heat from a stove.
Example: Motor neurons enable you to move your arm.
Example: The autonomic nervous system regulates heart rate.
Example: The sympathetic nervous system increases heart rate during a fight-or-flight response.