PSC 101 Lecture Notes - Lecture 2: Microglia, Myelin, Autonomic Nervous System
Document Summary
Dendrites = extensions that receive information, axon = extends from cell body, carries electrical potential, sends a chemical. Composed of: cell body = contains nucleus and protein synthesizing machinery for rest of. Neurons = cells that transmit information cell message to adjacent neurons. Integration zone = yes or no signal . Axon = transmits an action potential by carrying electrical potential and sending chemical messages. Axon terminals = receive or send chemical or electrical signals. Cell body contains the nucleus, which has dna = instructions for making proteins. Glial cells = originally thought to just hold together nerve cells as glue , it is becoming clear that glial cells have important effects on neural transmission: astrocytes = have distinct star shape . Can regulate neural transmission and blood flow (interacting with capillary - blood vessel) Active role in the brain: microglia = can move about within the brain. Sickness behavior = acts like its sick.
