PTH_AS 2201 Study Guide - Midterm Guide: Central Nervous System, Nervous Tissue, Somatosensory System
27 Apr 2016
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Monitor external and internal changes ex1. heat, pain, feeling cold breeze (external) ex2. stretching in stomach, pain in gut (internal: integration. Processes sensory input and determines response: motor output. Dictates response by activating effector organs ex. moving hand away from flame ex2. eat when hungry. Includes neural tissue, blood vessels, and connective tissues. Responsible for integrating, processing, and coordinating sensory data and motor commands. Where higher functions occur (intelligence, memory, learning, emotion) Links all regions of the body to cns. Delivers sensory information to cns, carries motor commands to peripheral tissues and systems ex. backing away from a cliff. Afferent division: brings sensory information to the cns from receptors in tissues and organs. Efferent division: carries motor commands from the cns to muscles and glands. Free nerve endings in almost all body tissue. Receptors for touch, pain, pressure, vibration, and temperature. Proprioception (sense of body in space) ; in skin, body wall, and limbs.
