Physiology 2130 Chapter Notes - Chapter 6: Catecholamine, Acetylcholine, Vasoactive Intestinal Peptide
25 Dec 2016
School
Department
Course
Professor
Document Summary
Draw and label a diagram of the human brain, showing all the major regions, important gyri and sulci, and the major functional areas of movements, sensory, vision, hearing, speech, and so on. Glial cells: support brain, maintaining internal environment of cns. Regulation of nutrients and interstitial environment of brain. Regulate passage of substances between blood and brain interstitial space. Bipolar neurons: have 2 processes extending from cell body. Unipolar neurons: have 1 process extending from cell body. Cell body: lies in middle, off to one side of axon. Multipolar neurons: contain many branching dendrites and one axon. Presynaptic neurons: synthesizes neurotransmitters stored in synaptic vesicles. Activates voltage-gated ca2+ channels: allow ca2+ to flow into axon terminal. Ca2+: initiates exocytosis via fusing of synaptic vesicles to walls of terminal bouton. Neurotransmitter: diffuses across the synaptic cleft, binding to chemical receptors on dendrites of postsynaptic cell membrane. Depolarization: due to inflow of na+, not through voltage channel.
