withdrawal reflex

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Last updated 10:25 PM on 4/9/26
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8 Terms

1
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Withdrawal Reflex Step 1 (Receptor)

Nociceptors in the finger detect pain

2
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Withdrawal Reflex Step 2 (Sensory Relay)

Signal travels through first-order sensory neuron (dorsal root ganglion)

3
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Withdrawal Reflex Step 3 (Entrance to CNS)

Enters spinal cord through dorsal root

4
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Withdrawal Reflex Step 4 (CNS Processing)

Synapses with interneuron in posterior gray horn (polysynaptic reflex)

5
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Withdrawal Reflex Step 5 (Motor Activation)

Interneuron activates motor neuron in anterior gray horn

6
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Withdrawal Reflex Step 6 (Exit from CNS)

Leaves through ventral root

7
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Withdrawal Reflex Step 7 (Peripheral Path)

Travels through ventral ramus

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Withdrawal Reflex Step 8 (Response)

Skeletal muscle contracts and withdraws hand