fight or flight

The amygdala and hypothalamus:

  • when faced with a threat an arera of the brain called the amygdala becomes active.
  • this associates sensory signals wityh emotions associated with fight or flight, such as anger or fear.
  • this then sends a distress signal to the hypothalamus, which functions like a command centre in the brain.

Response to accute stressors:

The sympathetic nervous system:

  •  when this is triggered it begins the process for for preparing the body for action begins.
  • the SNS then goes onto send a signal to the adrenal medulla, this then releases the hormone adrenaline into the bloodstream.

Adrenaline:

  • this circulates through the body, and causes a number of physiological changes.
  • our heart beats faster and our muscles have blood pushed to…

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