01 homeostasis intro

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01 homeostasis intro

  1. 1. When things work... Honda COG Commercial
  2. 2. Homeostasis homeostasis – constant physiological adjustments of the body in response to external environment changes also known as dynamic equilibrium What happens to your body when you exercise?
  3. 3.  body temperature increases  O2 levels being used up  increased cellular metabolism  evaporation of sweat to cool off  heart rate increases to increase blood flow  pancreas signals breaking down of biomolecules
  4. 4. Feedback Systems negative feedback system blood pressure drops blood pressure rises brain heart rate increases arteries constrict nerve pathway
  5. 5. Feedback Systems positive feedback (feed-forward) system progesterone decrease increased contractions uterus oxytocin endocrine system

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