KNPE 125 Study Guide - Midterm Guide: Amygdala, Arteriole, Withdrawal Reflex
23 Feb 2017
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Mass = inflow outflow flow = p x conductance. P- gradient- driving fore pushing a substance from one area to another. Conductance- an object"s ability to conduct a substance: p= concentration gradient. Diffuse-moving from areas of high concentration to low concentration: permeability = conductance, inverse of resistance. Controlled by inflow and outflow controlled variables control inflow and outflow of mass from a regulated variable. Feedback- error signal is sensed and a controlled response is triggered to correct the change. Estrogen inhibits pituitary gland from releasing fsh estrogen. Feed forward- occurs before the error signal is detected. Chemicals activate platelets which release more chemicals to release more platelets. Receptor-mediated cellular control signalling molecule binds to receptor activated the enzyme receptor than modifies another protein activating an intracellular response: signalling molecule, binds to receptor protein. Signalling molecule binds to receptor causing channel to open/ close. This changes membrane conductance and initiates a cellular response: intracellular signal molecules, target proteins, response.
