Physiology 1020 Study Guide - Final Guide: Voltage-Gated Ion Channel, Voltage-Gated Potassium Channel, Primary Motor Cortex
9 Dec 2016
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Nervous system consists of the central nervous system and the peripheral nervous system (cns/pns) Cns made up of brain and spinal cord. Pns consists of nerves outside the cns that go to muscles and organs. Going to muscles and skeletal muscles: autonomic. Contains 10-100 billion cells and weighs 1. 5 kilos (3. 5lbs) You have more brain cells when you are born than you do right now. Left hemisphere sends signals to activate muscles on the right side of the body. Sensory info from the right side of the body travels to the left hemisphere. Brain stem: controls most basic functions of the body (hr+resp), made up of the midbrain, pons, and medulla oblongata. Medulla is continuous with the spinal cord. Cerebellum: mainly responsible for balance and coordination. Thalamus/hypothalamus: bumps are gyri, dips are sulci, they both increase the surface area of the brain. Primary motor cortex processes the input from skeletal muscles throughout the body.
