When an Action Potential Is Over and the Membrane Has

question 148

Multiple Choice

When an action potential is over and the membrane has returned to resting potential, the voltage-gated sodium channel:

• A) is closed and not capable of opening
• B) is closed and capable of opening
• C) is open
• D) open and not capable of closing
• E) two of these answers.

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Definitions:

Hypospadias

A congenital condition in males where the urethra opens on the underside of the penis rather than at the tip.

Phimosis

A condition where the foreskin of the penis cannot be fully retracted over the glans, often requiring medical attention in severe cases.

Scrotal Sac

An external pouch of skin containing the testicles and part of the spermatic cord, playing a role in regulating testicular temperature.

Rugae

The folds or wrinkles found in the stomach lining and other bodily organs, allowing for expansion.