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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Definitions:

Physical Malformations

Physical malformations are congenital deformities or structural anomalies in the body, which may affect function or appearance.

Delayed Growth

A condition where a child does not achieve expected growth milestones at the typical age range, possibly due to nutritional, environmental, or genetic factors.

Heart Problems

Medical conditions related to the heart's function which can range from minor issues to serious disorders requiring treatment.

Child Abuse

The physical, sexual, emotional mistreatment, or neglect of a child by a parent, guardian, or other responsible person.