day 1 (half 2)

Vocabulary flashcards covering spinal nerves, the autonomic nervous system, neurotransmitters, and white and gray matter.

Spinal nerves

Nerves that take impulses to and from the spinal cord.

Dorsal root

Structure that conducts impulses toward the spinal cord.

Ventral root

Structure that conducts impulses away from the spinal cord.

ANS

The system that controls involuntary bodily functions and consists of the Parasympathetic Nervous System (PNS) and Sympathetic Nervous System (SNS).

Parasympathetic Nervous System (PNS)

Division of the ANS associated with Rest and Digest.

Sympathetic Nervous System (SNS)

Division of the ANS associated with Fight or Flight.

Acetylcholine

Neurotransmitter released by the PNS that slows breathing and heart rate, and stimulates digestion, salivation, and urination.

Norepinephrine

Neurotransmitter released by the SNS that increases breathing and heart rate, and inhibits digestion, salivation, and urination.

White matter

Nervous tissue consisting of myelinated axons that allow communication over long distances.

Gray matter

Nervous tissue consisting of interneurons, cell bodies, and unmyelinated axons that integrate information.