PSYC 2301 Chapter Notes - Chapter 2: Yellow Fever, Osteoporosis, Arteriosclerosis
25 Mar 2017
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Document Summary
Divided into 2 section central ns & peripheral ns. Cns includes brain & spinal cord: brain is contained in the cranial cavity, has many layers and is surrounded by . Ex: car crash, very rare to be the same person post car crash: spinal cord is contained in the spinal cavity, the highway of the body. Ex: damage to spinal cord can result in paralysis. Further divided into sympathetic and parasympathetic system: sympathetic: responds to danger and stress, physiological changes- heart beat. Fight & deal with stress head on or ready to go: parasympathetic: controls organs at baseline, agonistic to the sympathetic ns, active when individual feels relaxed, stimulates digestions (rest & digest). Diencephalon & telencephalon: diencephalon- contains thalamus and hypothalamus. Thalamus: relay sensation, spatial sense and motor signals to the cerebral cortex, along with the regulation of consciousness, sleep and alertness. Hypothalamus: regulates parts of medulla that control cardiac function, blood pressure, respiration.
