KINESIOL 3H03 Lecture Notes - Lecture 15: Trier Social Stress Test, Hypothalamic–Pituitary–Adrenal Axis, Adrenal Medulla
2 Apr 2016
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Distress: negative stress, threat and unpleasant challenge. Internal: inside of us, we can change out goals and lower our expectations. Physiological stressors: ex, caffeine, feel anxious without, ex, imbalanced diet. Feelings of stress: ex, anxiety, brain identifies what is wrong and what is doesn"t like. Primary appraisal: situation, important and potentially demanding. Stage of active resistance to stressor: ex, stay up late to finish paper. Takes in sensations from environment and what is around you. Releases epinephrine and norepinephrine: in response to a challenge need more resources, paraventricular nucleus of hypothalamus. Adrenal cortex releases cortisol response to unpleasant stimuli. Hormones in body increase hr and bp: liver breaks glycogen down into glucose for muscle energy, directs away from digestive system (shuts down pns) Allostasis: response to stress, getting back to homeostasis, adaptation, ex, reduce sweating and urine output because of dehydration (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0) (cid:0)
