Hormonal Response to Stress

1
Hormonal Response to Stress
2
Adrenal Glands

• located above each kidney
• inner adrenal medulla
• outer adrenal cortex

3
Adrenal Medulla hormones

• epinephrine (adrenaline) and norepinephrine
  (noradrenaline) produced during times of stress
• released into blood, causes glycogen to be
  converted to glucose, sugar levels
• speeds up heart breathing rates, cell
  metabolism, and causes pupil to dilate (more
  light into retina)

4
Adrenal Cortex hormones

• glucocorticoids ex cortisol. Helps body
  recover from stress.
• mineralocorticoids ex aldosterone. Helps
  kidneys maintain fluid levels.

5
Short-term Stress Response
Results In in blood glucose b/c glycogen
converted in HR, BR cell meta. More blood
flow to heart and muscle cells
epinephrine norephrine secreted
YouTube - Adrenaline Fight or Flight Response
6
Long-term Stress Response

• Mineralcortocoids
• in Na H2O retained by kidneys
• in blood volume pres.
• Glucocorticoids
• in blood glucose levels (proteins fats
  convert.)
• suppression of immune system
• YouTube - Stress Response Animation

cortisols (mineralcortocoids glucocorticoids)
secreted