When a Neuron's Plasma Membrane Becomes More Permeable to Potassium

question 97

Multiple Choice

When a neuron's plasma membrane becomes more permeable to potassium,

• A) potassium leaves the cell.
• B) potassium enters the cell.
• C) sodium enters the cell.
• D) sodium leaves the cell.

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Definitions:

Transverse Processes

Lateral projections from the vertebrae to which muscles and ligaments attach, and serve as points of articulation for ribs in thoracic vertebrae.

Vertebral Arch

The structure in a vertebra that encloses the spinal cord, formed by pedicles and laminae.

Lamina

Part of the vertebral arch in the spine that forms the back part of the spinal canal which encloses and protects the spinal cord.

Spinous Processes

Spinous processes are the bony projections off the back of each vertebra that can be felt through the skin and serve for muscle attachment and movement of the spine.