PHYS ED 32 Lecture Notes - Lecture 8: Sympathetic Nervous System, Endocrine System, Cortisol
17 Nov 2020
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A stressor is any physical or physiological event, real or imagined, that produces a. Stress response is the collective physiological & emotional responses to any stimulus that disturbs an individual"s homeostasis. Endocrine system (glands) secretes hormones that influence metabolism. Norepinephrine (brain), epinephrine (adrenaline) & cortisol (adrenals) trigger the fight or flight reaction. Epinephrine : stress hormone secreted from inner part of adrenal glands that is. Cortisol : stress hormone that has influence on learning, memory & protection; accelerated (stimulator). can have opposite effect if circulated around. Psychological and behavioral responses to stressors (fig 10. 3; pg. What can influence our emotional & behavioral responses are: Personality traits -- type a are ultra-competitive, controlling, impatient -- more problems if aggressive, hostile, cynical. The general adaptation syndrome (gas) (fig 10. 4; pg. Alarm : fight or flight reaction; susceptible to illness, disease. Resistance : coping stage; more resistant to injury, disease.
