Physiology 2130 Lecture Notes - Lecture 6: Vasoactive Intestinal Peptide, Inhibitory Postsynaptic Potential, Postcentral Gyrus

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

Document Summary

Physiology 2130 distance studies module 6 nervous system. Central nervous system (cns) = brain + spinal cord. Parasympathetic nervous system (pns) = somatomotor (going to skeletal muscles) + autonomic (going to other organs) Two hemispheres right and left: left sends signals to activate muscles on right side of body, and vice versa. Brain stem = midbrain, pons + medulla oblongata: controls basic functions, e. g. heart rate, medulla continuous with spinal cord. Cerebellum in back region above brain stem: purpose coordinated movement. Many gyri (bumps) and sulci (dips) on brain surface: folds increase surface area. Frontal lobe: primary motor cortex processes input from skeletal muscles, premotor cortex (motor association area) and prefrontal cortex process movement information and other sensory input to generate perception of stimuli. Parietal lobe: primary somatosensory cortex receives input from sense organs (e. g. skin, taste buds, musculoskeletal system, association areas integrate sensory input with other association areas to generate perception.