Question

Explain reflect arc.

Answer 1

the nerve pathway involved in a reflex action, including at its simplest a sensory nerve and a motor nerve with a synapse between.

Answer 2

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☜☆☞ A reflex arc starts from the sensory neuron which is affected by the stimulus, and ends with the last neuron that synapses with the affector; including all the neurons in between.

Tendon tap: The reflex arc consists of the spindle afferent and motoneuron as efferent—just a two neuron arc.

Flexor reflex: It consists of the nociceptor, plus 1–3 interneurons, the last interneuron excites flexor motoneurons. Reflex arc consists of the nociceptor, plus a sequence of 2–3 interneurons, followed by flexor motoneurons.

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