The Opening of a Cation Channel That Allows Both Na⁺

question 40

Multiple Choice

The opening of a cation channel that allows both Na⁺ and K⁺ to move through will cause the membrane to because of the _.

• A) depolarize : greater K⁺ electrochemical gradient as compared with Na⁺
• B) hyperpolarize : greater K⁺ electrochemical gradient as compared with Na⁺
• C) depolarize : greater Na⁺ electrochemical gradient as compared with K⁺
• D) not change : same electrochemical gradient for K⁺ and Na⁺
• E) hyperpolarize : greater Na⁺ electrochemical gradient as compared with K⁺

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Saline

A solution of salt in water, commonly used in medical practice for intravenous infusions, nasal irrigation, and wound cleaning.

Weber

Relates to the Weber test, a quick screening test for hearing that involves placing a vibrating tuning fork on the center of the forehead.

Rinne Tests

A clinical test used to evaluate loss of hearing by comparing air conduction to bone conduction of sound.

Romberg Test

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