Biology · Human Physiology
Scratching often temporarily eases itching because:
- 1It kills the surface germs causing the irritation
- 2It suppresses the production of enzymes that cause itching
- 3It removes the outer dust and dead cells from the skin
- 4It stimulates certain pain-carrying nerves that block itch signals in the spinal cord and brain✓
Correct answer
It stimulates certain pain-carrying nerves that block itch signals in the spinal cord and brain
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