KINE 3020 Study Guide - Supplementary Motor Area, Premotor Cortex, Basal Ganglia

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 3020
• Professor: Merv Mosher

Document Summary

Similar to the sensory map in that it distorts the representations of the body. The areas that require the most detailed control and allow for finely graded movements (mouth, throat, hand) are most highly represented. The processing areas of the motor cortex (listed below) interact with sensory processing areas in the parietal lobe and the basal ganglia and cerebellar areas to identify where we want to move, plan the movement and execute our actions. Primary motor cortex (mi) + 4 premotor cortical areas: a) supplementary motor area (sma or mii) b) cingulate motor area (in the cingulate gyrus, inferior to the sma) c) lateral ventral premotor area d) lateral dorsal premotor area. The same muscle can be activated from several sites in the cortex. There is not a one-to-one correspondence between a site and a muscle, as was once believed. The benefit of having this type of activation is that muscles that required more stimulation at once can receive it.