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| Question | Answer |
| What is acute stress caused by? | Caused by acute stressors - something which happens suddenly, body has to react quickly. |
| Explain the body's response to acute stress. | 1. The autonomic nervous system. 2. ANS subdivided into: - Sympathetic nervous system - Parasympathetic branch 3. SNS prepares body for fight or flight, parasympathetic branch returns body to a state of relaxation. Splits into 2: 4. SAM releases adrenaline. Adrenaline boosts oxygen and glucose supplies and supressed non urgent bodily functions. 5. SAM I regulated by the SNS and the adrenal medulla - just above the kidneys. The adrenal gland has two zones - adrenal medulla and adrenal cortex. OR 4. SNS sends messages via neurons to most body organs and causes the release of noradrenaline - a neurotransmitter. 5. Noradrenaline increases heart rate, pupil size and mobilises fat and glycogen which provides energy. |
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