Kinesiology 1080A/B Lecture Notes - Lecture 9: Neurosurgery, Central Sulcus, Postcentral Gyrus

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 1080A/B
• Professor: Matthew Heath

Document Summary

Basal ganglia: group of varied origin nuclei connected to thalamus and cerebral cortex, plays an important role in excitation of m1 (primary motor cortex) neurons. Substantia nigra is known for producing dopamine (help with movement etc. ) in the brain. Striatum globus paladus substantia nigra stn (subthalamic nucleus: the basal ganglia has 2 pathways. Direct pathway serves to stimulate neurons in the primary motor cortex. Indirect pathway prevents stimulation of neurons in the primary motor cortex. People (cid:449)ith parki(cid:374)so(cid:374)"s ha(cid:448)e pro(cid:271)le(cid:373)s sti(cid:373)ulati(cid:374)g their pri(cid:373)ar(cid:455) (cid:373)otor cortex, so this results in a characteristic feature, bradykinesia, slowness in movement. Video of so(cid:373)eo(cid:374)e with parki(cid:374)so(cid:374)"s: given battery like medication, that supports the loop discussed above. Involved in the coordination of voluntary motor movement, balance and equilibrium and muscle tone. People with cerebellar damage they have a lot of increased muscle tone. We know that learning new motor skills requires an intact cerebellum.