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Study weeks 7-13
Physiology
| Term | Definition |
|---|---|
| acetylcholine (ACh) | type of neurotransmitter used by motor neurons at neuromuscular junctions to stimulate muscle contraction at or in some autonomic synapses |
| hyperpolarization | increase in electrical charges separated by the cell membrane; causes change further below 0 mV |
| repolarization | phase of the action potential in which the membrane potential changes from its maximum degree of depolarization toward the resting state potential |
| cerebellum | second largest part of the human brain; plays an essential role in the production of normal movements |
| cerebrum | largest and upper-most part of the human brain that controls consciousness, memory, sensations, emotions, and voluntary movements |
| epithalamus | small nuclei located outside the thalamus and hypothalamus; considered to be one of the structures of the diencephalon |
| hypothalamus | important autonomic and neuroendocrine control center located inferior to the thalamus in the brain |
| midbrain | region of the brain-stem between the pons and the diencephalon |
| brachial plexus | nerve plexus located deep in the shoulder that innervates the lower part of the shoulder and the entire arm |
| cervical plexus | plexus located deep within the neck; innervates muscles and skin of the neck, upper shoulder, and part of the head |
| sacral plexus | plexus formed by fibers from the fourth and fifth lumbar nerves and the first four sacral nerves |
| vagus nerve | cranial nerve X; mixed nerve; sensations and movements of organs |
| olfactory nerve | cranial nerve I; sensory nerve; responsible for the sense of smell |
| adrenergic | adjective describing a structure that functions with norepinephrine (NE) and epinephrine (Epi), as in a nerve fiber that releases NE or a receptor triggered by NE |
| cholinergic | adjective describing a structure that functions with acetyl-choline (ACh), as a nerve fiber that releases ACh or a receptor triggered by ACh |
| ganglion | in peripheral nerves, a region of gray matter made up of unmyelinated fibers |
| norepinephrine | hormone secreted by adrenal medulla that increases cardiac output; neurotransmitter released by sympathetic postganglionic neurons of the ANS; also called noradrenaline |
| thermoreceptor | sensory receptor activated by heat or cold |
Created by:
Aatilano78
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