ANP 1106 Study Guide - Final Guide: Palpebral Fissure, Postcentral Gyrus, Orbicularis Oculi Muscle

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Brianne Thrush

Document Summary

Brief, short distance, all directions, receptor and generator. Pre and postsynaptic neurons direct contact via gap junctions, rapid communication. Reuptake by astrocytes, degradation by enzymes, diffusion away. Epsp or ipsp may or may not lead to ap. Direct, simple, fast, nt binding conf change channel opens. G protein activates enzyme, lead to production of 2nd messenger: type of stimulus detected, body location, structural complexity. Vision, hearing, equilibrium, smell, taste: receptor level, circuit level, perceptual level. Impulse from sc primary somatosensory cortex in brain. 1st order: link receptor with cell body in spinal cord. 2nd order: move up spinal cord brain. 3rd order: take message to cerebral somatosensory cortex. Location of target important, not nature of message. Sensory nerve fiber projects to specific location in cortex. Via activation of nmda receptors in spinal cord: segmental- reflexes, projection- cerebral cortex, precommand- complex motor activity. Collections of nerve cell bodies in the pns.