PSYC 365 Chapter Notes -Depersonalization, Central Nervous System, Meningitis

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 365
• Professor: David Cox

Document Summary

Homeostasis: dynamic physiological response on the part of the body to maintain a stable internal state in spite of the environmental demands. Nerve cells that conduct impulses from a sense organ to cns or from lower to higher levels in the spinal cord and brain: efferent neurons. Nerve cells that take impulses away from the brain. Both communicate with each other via neurotransmitters at the synapse: peripheral nervous system. Sympathetic and parasympathetic: fight or flight and rest and digest, central nervous system. Main component of cns, and support system for neurons. Acts as a sentinel for materials that enter the brain via blood. Inflammation of membranes that protect brain and spinal cord. Caused by blood vessel rupture: diagnosis critical. If you treat hemorrhagic like ischemic and attempt to blast the blockage you"ll spill more blood. Physiology of stress: sympathetic adrenomedullary system, hypothalamic pituitary adrenal system, limbic system. Trying to reestablish homeostasis: endocrine system joins in (slowly)