Brain Metabolism
Physiological changes: Decreased heart rate, blood pressure, breathing rate, body temperature; Maintained muscle tone; Reduced brain metabolism
What our notes say
- Physiological changes: Decreased heart rate, blood pressure, breathing rate, body temperature; Maintained muscle tone; Reduced brain metabolism (Sleep Physiology Examination Paper)
- Physiological changes: Muscle atonia (except diaphragm and eye muscles); Rapid eye movements; Irregular heart rate, blood pressure, breathing; Increased brain metabolism (up to 20%) (Sleep Physiology Examination Paper)
Study material on Brain Metabolism
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Practice questions on Brain Metabolism
Brain metabolism during REM sleep is
- Decreased by 50%
- Unchanged
- Increased by 20%
- Decreased by 20%
- Usually mediated by non-specific mechanisms
Answer: C. Brain metabolism increases during REM sleep, reflecting high neural activity. ---