Physiology 2130 Lecture Notes - Lecture 6: Inhibitory Postsynaptic Potential, Postcentral Gyrus, Primary Motor Cortex
11 Feb 2017
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Document Summary
The nervous system consists of the cns and pns. Cns central nervous system: brain and spinal cord. Pns peripheral nervous system: nerves outside the cns that go to the muscle and organ, somatomotor ns. Going to skeletal muscle: autonomic ns. Chemical synapse junction between two nerves and the. Going to other organs events that take place there. Have more brain cells when you are born than you do right now. Action potential can travel up to 400km/h. Two cerebral hemispheres left and right: left sends signals to activate muscles on the right side of the body, sensory information from the right side of the body travels to the left hemisphere (& vice versa) Brain stem controls some of the most basic functions of the body like heart rate and respiration: made up of midbrain, pons, medulla oblongata. Medulla continuous with the spinal cord. Cerebellum back (or posterior region), above the brain stem: mainly responsible for coordinated movement.
