ECOL 182R Study Guide - Midterm Guide: Hair Cell, Beewolf, Photon
29 Mar 2017
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Nervous system & sensors: signal transduction, transduction=stimulus energy converted to neuronal impulse a. i. Ex: mechanoreceptors: biologists were able to study a squid"s giant axon b. i. Squid able to swim away from predators faster: nervous system, role= transmit information, learning and memory, combination of chemical and electrical signaling, only 10% of cells are neurons d. i. Glial cells support neurons: neuron, afferent (coming in) a. i. Involuntary a: rest & digest, sympathetic nervous system, fight or flight, efferent nervous system, somatic/voluntary a. i. Skeletal muscle: autonomic (smooth/cardiac muscles, glands, etc. ) b. i. Enteric: antagonist pairs, ex: eyes, heart, digestive system, nervous system began more simply , sea anemone a. i. Specialized ganglia: cortical maps, more neurons to make precise movements, face and hands b. i. tongue and index finger b. i. 1. Making out stimulates neurons: big idea: sensitivity varies, relative ion concentrations, atp used to generate these a. i. Calcium (ca+): lower outside, higher inside: fight entropy, neuron function 1: electrical, electricity drives function b.
