Fight or Flight response
- Created by: Chloewalton99
- Created on: 21-04-17 13:27
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- Fight or flight
- The nervous system and endocrine system work together, e.g. During a stressful event
- When a stressor is perceived, the hypothalamustriggers activity in the sympathetic branch
- This changes the autonomic from its normal resting state (parasympathetic state) to the psysiologically aroused sympathetic state
- The stress hormone adrenaline is released from the adrenal medulla into the bloodstream
- This triggers physiological changes in the body (e.g. Increased heart rate)
- This creates the physiologicalarousal necessary for the fight or flight response
- All this happens in an instant as soon as the threat is detected and is an automatic reaction in the body
- This changes the autonomic from its normal resting state (parasympathetic state) to the psysiologically aroused sympathetic state
- Once the threat has passed, the parasympathetic nervous system returns the body to its resting state
- The parasympathetic branch of the ANS works in opposition to the sympathetic nervous system
- It's actions are antagonistic to the sympathetic system
- The parasympathetic branch of the ANS works in opposition to the sympathetic nervous system
- All this happens in an instant as soon as the threat is detected and is an automatic reaction in the body
- This creates the physiologicalarousal necessary for the fight or flight response
- This triggers physiological changes in the body (e.g. Increased heart rate)
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