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Biopsychology - Coggle Diagram
Biopsychology
Endocrine System
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Process:
- A signal is sent from the hypothalamus to the pituitary gland in the form of ‘releasing hormones’
- The pituitary gland releases a ‘stimulating hormone’ into the blood stream
- This hormone then signals the target gland to release its hormone
- As the level of this hormone increases in the blood stream, the hypothalamus inhibits the releasing hormone
- This stops the pituitary gland from signalling its ‘stimulating hormones’ resulting in stable concentrations of the target hormone in the blood stream
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Fight or Flight
Process:
- Hypothalamus triggers activity in sympathetic branch of ANS
- Ans changes from parasympathetic state (resting) to sympathetic state (physiologically aroused)
- adrenaline (stress hormone) released from adrenal medulla into blood stream
- adrenaline triggers physiological changes: increased heart rate which is necessary for fight or flight
- once threat has passed, parasympathetic nervous system returns to its resting state.