🎯 What is a reflex?

• a rapid, involuntary, automatic response triggered in response to a stimulus

• reflexes are designed to protect us from potential dangers that may cause harm to the body by allowing us to react immediately before the brain has time to process and register the event

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⚡️ Nerve roots of common reflexes

• biceps

  • C5-C6 - elbow flexion

• triceps

  • C7-C8 - elbow extension

• knee

  • L3-L4 - knee extension

• ankle

  • S1-S2 - plantarflexion

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🧲 Mnemonic

• one, two, stand on my shoe (ankle reflex)

• three, four, kick the door (patellar reflex or knee jerk)

• five, six, pick up the sticks (bicep reflex)

• seven, eight, give them to Kate (tricep reflex)

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