The Polarity That Exists Across a Cardiac Cell Membrane Is

question 10

Multiple Choice

The polarity that exists across a cardiac cell membrane is maintained by an active transport process known as

• A) automaticity.
• B) fibrillation.
• C) sodium-potassium ion pump.
• D) pinocytosis.

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Definitions:

Capillary Refill Time

The time taken for color to return to an external capillary bed after pressure is applied, indicating the circulatory status.

Palpating

The act of examining part of the body by touch, especially for medical purposes.

Blanching

The process of whitening or pale appearance when pressure is applied to the skin, indicating reduced blood flow or perfusion.

Nerve Cord

A bundle of nerves that extends from a central ganglion or brain and gives rise to smaller nerves. In vertebrates the nerve cord is dorsal and tubular.