Central Nervous System
Central Nervous System

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Brain and Brainstem Neurons and Neuroglia - functions of the nervous system - sensory - external - skin: pain, temperature, pressure - special senses: smell, taste, vision, aud itory, vestibular - internal - position sense (proprioception) of muscles and joints, including sensation of muscular tension and joint position - visceral sense (sensation of gut, bladder, uterus) - blo od oxygen [O 2 ] level (carotid body chemoreceptors) - blood carbon dioxide [CO 2 ] by [H + ] receptors * in metencephalon - blood pressure (carotid sinus baroreceptors) - blood osmolarity (hypothalamus) - core body tem perature (hypothalamus) - motor - locomotion of body [CNS and Peripheral Nervous System (PNS)] - locomotion of internal organs [CNS and Autonomic Nervous System (ANS)] - coordination of sensory input an d motor output - learning and memory - reactive behavior (instinctive thought) - symbolic and conceptual thought (intelligence) - self - awareness (consciousness) * in solution: CO 2 ↔ H + + HCO 3 - ©