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Suppose an α-Motor Neuron Had Five Axons, Which We Will

Question 29

Multiple Choice

Suppose an α-motor neuron had five axons, which we will call a, b, c, d, and e synapsing onto a muscle with two fibers ("1" and "2") . Axons a and b innervated muscle fiber 1, while axons c, d, and e innervated muscle fiber 2. Then, axons c and d were severed. What result is likely?


A) Axons c and d would regrow to synapse with muscle fiber 2, restoring their original connections.
B) Axons a and b would withdraw.
C) Axons c and/or d would regrow to synapse with muscle fiber 1, while axon a and/or b withdraws.
D) Axons and/or b would withdraw and synapse with muscle fiber 2.
E) Axons a and b would remain unaffected.

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