Zusammenfassung der Ressource
Muscles, Nerves and Hormones
- The 'Fight or Flight' Response
- Physiological Changes
- Pupils Dilate
- Heart rate and BP increase
- Blood glucose levels increase
- Metabolic rate increases
- Endorphins are released
- Sweat production increases
- Co-ordination of the Physiological Changes
- The cerebral understanding of a
threat activates the hypothalamus
- Stimulates increased activity in the sympathetic
nervous system and triggers the release of
adrenaline from the adrenal medulla into the
blood.
- The hypothalamus releases CRF into
the pituitary gland stimulating the release
of ACTH.
- This then
stimulates the
release of
cortisols from
the adrenal
cortex