FLOWCHART- what happens to the body when it is under stress? (acute and chronic)
A flowchart showing how the HYPOTHALAMUS deals with acute and chronic stress
- Created by: Amelia Stamp
- Created on: 11-03-13 20:23
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- Stressor
- Hypothalamus
- PRODUCES
- Corticotrophin releasing factors (CRF)
- Pituitary gland produces adrenocorticotrophic hormone (ACTH)
- released into the bloodstream...
- ACTH reaches adrenal gland
- The adrenal cortex produces cortisol (stabilises blood glucose levels and reduces wound healing by suppressing immune system.
- Stressor disappears
- Hypothalamus and pituitary gland stop producing CRF and ACTH
- CHRONIC STRESS RESPONSE (PITUITARY ADRENAL SYSTEM RESPONDS AFTER A FEW HOURS EXPOSED TO THE STRESSOR)
- Hypothalamus and pituitary gland stop producing CRF and ACTH
- Stressor disappears
- The adrenal cortex produces cortisol (stabilises blood glucose levels and reduces wound healing by suppressing immune system.
- ACTH reaches adrenal gland
- released into the bloodstream...
- Pituitary gland produces adrenocorticotrophic hormone (ACTH)
- Corticotrophin releasing factors (CRF)
- ACTIVATES
- Sympathetic Nervous System
- Raises the bodies arousal (Heart Rate and Respiration Increases)
- Sympathetic Nerves supplying the adrenal medulla
- Adrenal Medulla releases adrenaline and nor-adrenaline into the bloodstream
- Activates the Fight or Flight response (Boosts supply of oxygen and glucose to the brain and muscles and reduces activity in the digestive system)
- Serge of energy, pupils widen, sweat, heart pounds, muscles tense and tremble, use up energy.
- Stressor disappears
- Parasympathetic Nervous System returns body back to normal
- ACUTE STRESS RESPONSE (SYMPATHOMEDULLARY PATHWAY RESPONDS IMMEDIATELY TO SHORT-TERM STRESS)
- Parasympathetic Nervous System returns body back to normal
- Stressor disappears
- Serge of energy, pupils widen, sweat, heart pounds, muscles tense and tremble, use up energy.
- Activates the Fight or Flight response (Boosts supply of oxygen and glucose to the brain and muscles and reduces activity in the digestive system)
- Adrenal Medulla releases adrenaline and nor-adrenaline into the bloodstream
- Sympathetic Nerves supplying the adrenal medulla
- Raises the bodies arousal (Heart Rate and Respiration Increases)
- Sympathetic Nervous System
- PRODUCES
- Hypothalamus
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