PSL300H1 Study Guide - Final Guide: Somatic Nervous System, Peripheral Nervous System, Autonomic Nervous System
Document Summary
Chapter 13 integrative physiology i: control of body movement. It then initiates ap in efferent neurons to direct the response of muscles and glands the targets: feedback signals from muscle and joint receptors keep the cns continuously informed of changing body position, negative feedback, feedforward. Ex: brace yourself in anticipation of a collision: neural reflex pathways: consist of chains or networks of neurons that link sensory receptors to muscles or glands, by efferent division of the nervous system that controls the response. The sons consists of efferent nerves responsible for stimulating muscle contraction, including all the non-sensory neurons connected with skeletal muscles and skin. Automoic reflexes: reflexes whose responses are controlled by autonomic neurons. The ans affects heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation, micturition (urination), and sexual arousal. Most autonomous functions are involuntary but a number of ans actions can work alongside some degree of conscious control.
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