PSYCH-UA 1 Lecture Notes - Lecture 2: Egg Cell, Slow-Wave Sleep, Human Sexual Response Cycle
22 Mar 2016
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Document Summary
Motivation: when we detect a cue for a need we become motivated to satiate it. Homeostasis: the body"s tendency to maintain the conditions of its internal environment by various forms of self-regulation. Drive: a term referring to a state of internal bodily tension, such as hunger or thirst or the need for sleep. Cns (central nervous system): the brain and spinal cord. Somatic (sns): controls the skeletal muscles and transmits sensory information. afferent nerves deal with how we consciously see things and efferent nerves report out. Autonomic (ans): receives information from and controls the internal organs more or less automatic functions below our level of consciousness (breathing, heart rate, etc). Sympathetic and parasympathetic components. sympathetic branch: mobilizes the organism for physical exertion parasympathetic branch: restores the body"s normal resting state and conserves energy. Three major divisions of the brain: hindbrain (medulla, pons, cerebellum), midbrain, forebrain. Basil ganglia longitudinal fissure divides one hemisphere from the other.
