2_22_07 - February 22, 2007 Bio 130 2 systems of...

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February 22, 2007 Bio 130 2 systems of communication in body o nervous system – fast (localized response), electrical action potential (short lasting, homeostasis o endocrine system – slow, widespread (chemical) hormones, long lasting growth development reproduction hypothalamus (CNS) central nervous system mind-body connection pituitary gland – hypophysis plants and fungi only have endocrine system nervous system only found in animals sensory receptor sensory afferent neuron (part of sensory nervous system) synapse (use neurotransmitters) motor neuron = efferent neuron (somatic or autonomous nervous system) response CNS – peripheral nervous system Somatic nervous system – skeletal muscles cells only. Voluntary control Autonomic nervous system – involuntary, smooth cardio muscles, glands, immune system mechanisms Sympathetic division is for flight or fight response Parasympathetic division – calms down your digestive system
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This note was uploaded on 09/29/2009 for the course NPB NPB 101 taught by Professor Weidner/wingfield during the Spring '08 term at UC Davis.

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2_22_07 - February 22, 2007 Bio 130 2 systems of...

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