For a Neuron with an Initial Membrane Potential at -70

question 33

Multiple Choice

For a neuron with an initial membrane potential at -70 mV, what would be the result of an increase in the movement of potassium ions out of that neuron's cytoplasm?

• A) depolarization of the neuron
• B) hyperpolarization of the neuron
• C) replacement of potassium ions with sodium ions
• D) replacement of potassium ions with calcium ions

---

Definitions:

Spinal Nerve

A nerve that emerges from the spinal cord and consists of both motor and sensory fibers, providing communication between the spinal cord and the body.

Central Canal

The fluid-filled space running longitudinally through the length of the entire spinal cord, containing cerebrospinal fluid.

Anesthesia

A medical procedure involving the administration of agents that result in a state of temporary loss of sensation or awareness.

Axillary Nerve

A nerve in the shoulder that innervates the deltoid and teres minor muscles as well as provides sensation to the skin.