Reflexes
4 figures covering reflexes, fastest first.
| What | Typical | Range | Kind | What is measured |
|---|---|---|---|---|
| Vestibulo-ocular reflex | 10 ms | 7 ms–15 ms | Reflex | Head turns; time until the eyes counter-rotate to hold the image still. |
| Knee-jerk (patellar) reflex | 22 ms | 18 ms–24 ms | Reflex | Tap the patellar tendon; time to the quadriceps contracting. |
| Blink reflex | 40 ms | 30 ms–60 ms | Reflex | Air puff or loud sound; time to the eyelid muscle firing. |
| Withdrawal reflex | 90 ms | 70 ms–150 ms | Reflex | Touching something painfully hot or sharp; time to the limb starting to move away. |
- Vestibulo-ocular reflex 10 ms
- Knee-jerk (patellar) reflex 22 ms
- Blink reflex 40 ms
- Withdrawal reflex 90 ms
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