Which of These Statements Does NOT Apply to the Absolute

question 384

Multiple Choice

Which of these statements does NOT apply to the absolute refractory period

• A)It refers to the period of time during which another action potential cannot be initiated in a patch of membrane that has just undergone an action potential, no matter how strong the stimulus.
• B)It corresponds to the time period during which the Na⁺ gates are first opened and then closed and inactivated.
• C)Immediately following it, the patch of nerve fibre membrane that has just undergone an action potential can be restimulated only by a stronger stimulus than is usually necessary.
• D)It occurs during the after hyperpolarization phase of the action potential.

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Definitions:

Medulla Oblongata

The lower portion of the brainstem, which controls autonomic functions such as breathing, heart rate, and digestion.

Brainstem

The lower extension of the brain where it connects to the spinal cord, responsible for controlling many basic life functions such as breathing and heart rate.

Spinal Cord

A long, thin, tubular structure made up of nervous tissue, extending from the brainstem down the vertebral column, playing a critical role in transmitting neural signals between the brain and the rest of the body.

Pyramids

Structures in the medulla oblongata of the brain involved in the transmission of motor signals to the spinal cord.