PNB 2264 Study Guide - Final Guide: Motor Neuron, Basal Ganglia, Nociceptor
23 Jan 2017
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Review study guide for cumulative final (exam 4) Learning objectives (for exams 1 2: describe how the human body is organized as a hierarchy. Ex: chemical level cell level tissue level (4 types) organ level organ system level organismal level: describe the body fluid compartments. Not an equilibrium - rather a dynamic steady state. Homeostasis usually controls body fluid compartments: list the elements of a closed-loop negative feedback control system. Stimulus receptor afferent pathway integrating center (compare to set point) efferent pathway effector response. Negative feedback - stimulus removed, response goes back toward set point: describe the roles of closed-loop negative and positive feedback control systems in the human body. Closed loop negative feedback control keeps conditions relatively stable (homeostasis) Closed loop positive feedback control may promote useful change (ex: labor contraction, blood clotting) or may cause disaster (ex: circulatory shock)
