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Define unconditioned reflex. Give three examples.

User Tom Dufall
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Final answer:

An unconditioned reflex is an instinctive and involuntary response to a specific stimulus. Three examples of unconditioned reflexes in humans are the s-u-c-k-i-n-g reflex, grasp reflex, and knee-j-e-r-k reflex.

Step-by-step explanation:

An unconditioned reflex is an instinctive and involuntary response to a specific stimulus. It occurs without prior learning or conditioning. Three examples of unconditioned reflexes in humans are:

  1. Sucking reflex: Newborn babies instinctively suck on a nipple placed in their mouth.
  2. Grasp reflex: Babies instinctively grasp an object placed in the palm of their hand.
  3. Knee-j-e-rk reflex: When a doctor taps the patellar tendon below the kneecap with a rubber hammer, it elicits the reflex of extending the leg at the knee.

User Eilene
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