Autonomic Nervous System and Limbic System Overview

These flashcards cover key terminology and concepts related to the autonomic nervous system and the limbic system as discussed in the lecture.

Executive Brain

The part of the brain responsible for rational, analytical decision-making and voluntary control.

Limbic System

A complex set of structures involved in processing emotions, drives, and memory.

Brainstem

The part of the brain responsible for regulating involuntary bodily functions such as heartbeat and respiration.

Preganglionic Neurons

Neurons that transmit signals from the central nervous system to ganglia in the autonomic nervous system.

Postganglionic Neurons

Neurons that transmit signals from ganglia to effector organs in the autonomic nervous system.

Parasympathetic Division

Part of the autonomic nervous system responsible for 'rest and digest' functions.

Sympathetic Division

Part of the autonomic nervous system responsible for 'fight or flight' responses.

Acetylcholine (ACh)

A neurotransmitter released by all preganglionic neurons in the autonomic nervous system.

Norepinephrine (NE)

A neurotransmitter released by most postganglionic neurons in the sympathetic division.

Endorphins

Neuropeptides produced by the limbic system that create feelings of pleasure and reward.

Dynorphins

Neuropeptides that are released in response to punishing stimuli and create unpleasant sensations.

Hippocampus

Part of the limbic system involved in the formation of new memories and associative learning.

Amygdala

Region of the limbic system critical for emotional regulation and the processing of fear.

Law of Effect

The principle that behaviors followed by positive outcomes are likely to be repeated, while those followed by negative outcomes are less likely to be.

Neurotransmitter Receptors

Proteins on the surface of cells that bind neurotransmitters and mediate their effects.

Homeostasis

The maintenance of stable internal conditions in the body, regulated by the autonomic nervous system.