Physiology 2130 Lecture Notes - Lecture 6: Human Musculoskeletal System, Oligodendrocyte, Cerebellum

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: Christine Bell

Document Summary

Frontal lobe- primary motor cortex; process input from skeletal muscles throughout the body. Parietal lobe- receives input from major sense organs (skin, musculoskeletal system, taste buds) Cerebellum- coordinates the execution of movement in the body. Temporal lobe- auditory nerve; smell short term memory storage, recall. 4 neurotransmitters in the body: acetycholine (ach, biogenic amines, amino acids, neuropeptides. Excitatory: (cid:374)eurotra(cid:374)s(cid:373)itters excite or (cid:862)tur(cid:374) o(cid:374)(cid:863) a (cid:374)euro(cid:374) Spatial summation: many epsps occurring simultaneously at many different synapse can be added together to produce a large depolarization. When the depolarization reaches the axon hillock, it will open a sufficient number of voltage-gated channels to reach threshold and to fire the action potential. Temporal summation: the summing of a series of collective epsps that were generated by a set of high frequency action potentials at the same synapse over a short period of time. Premotor cortex: develops the appropriate strategy for the movements necessary.