HLTC22H3 Chapter 10: Chapter 10 notes
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ppl start getting butterflies, blood pumping faster, hair stands up, etc. : once the threat is resolved, parasympathetic nervous system (pns) activation returns body to homeostasis by decreasing heart rate & respiratory rates. Voodoo death if this process is prolonged, cannon said that this process can lead to shock and cardiac arrest. cannon: fight/flight reaction is general response to any stressor. selye expanded cannon"s conceptions: referred to his own work as the physiology of dirt based on the fact taht when dirt is injected into rats, corticosteroid increases. glucocorticoids fat-soluble molectules enables them to cross cell membranes ine very organ system in the body, thus, with stress the functioning of every organ system in teh body can be affected. seyle also described 3 stages in reaction to stress: alarm (flight/fight stage)adaptation(return to physiological homeostasis),exhaustion(organism may fall ill or die if stress continues) www. notesolution. com. now recognized that there are individual differences in stress reactions.
