IHST 1001 Lecture Notes - Lecture 12: Action Potential, Myosatellite Cell, Cell Nucleus
9 Dec 2018
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Nervous system: functions of the nervous system, sensory detect changes in environment, motor telling the body what to do in response. Involve release/receipt of chemical messengers called neurotransmitters: electrical. Receives sensory information from skin, fascia, joints, skeletal muscles, special senses: visceral sensory. Receives sensory information from viscera: motor nervous system (efferent, transmits information from cns to the rest of the body, sends motor information to effectors, somatic motor. Voluntary nervous system: innervates skeletal muscles: autonomic motor. Involuntary nervous system: innervates cardiac muscle, smooth muscle, glands: parasympathetic pathways rest & digest autonomic nervous system. Increase digestion: decrease heart rate and blood pressure, sympathetic pathways fight or flight autonomic nervous system. Increase heart rate and blood pressure: decrease digestion, the brain, cerebral hemisphere - cerebrum, diencephalon, cerebellum, brainstem midbrain, pons, medulla oblongata, cerebrum, 3 components: Basal nuclei: dark/gray matter, located centrally in cerebrum, neuron cell bodies, Coordinates brain function, plays role in parkinson"s disease: diencephalon gray matter.
