PSL201Y1 Study Guide - Midterm Guide: Pupillary Response, Sympathetic Nervous System, Autonomic Nervous System
Document Summary
Primary function is to regulate organs to maintain homeostasis. Parasympathetic and sympathetic activities tend to oppose each other. Synapses between efferent and effector organs in the autonomic nervous system. Increases in parasympathetic activity coupled with decreases in sympathetic activity. Increases in sympathetic activity coupled with decreases in parasympathetic activity. Antidepressant: monoamine oxidase inhibitors, monoamine oxidase degrades catecholamines and other monoamine neurotransmitters. Low levels of neurotransmitters is often linked to depression. The ans (autonomic efferent) is linked to the sensory system to produce functional reflexes. Autonomic reflexes are good examples of neg. feedback loops. Iris muscles (pupil size) contraction of circular muscle (pupillary contraction) Blood and immunity i; introduction and blood cells. Transports gases (oxygen, carbon dioxide), nutrients, hormones and metabolic wastes. Regulates composition of interstitial fluid (e. g. , ph, ions, water, etc. ) Restricts fluid loss at injury sites via blood clotting. Regulates body temperature by absorbing and redistributing heat. Most plasma proteins are made by the liver.
