Because So Many Na⁺ Ions Move into a Cell During

question 18

True/False

Because so many Na⁺ ions move into a cell during an action potential and so many K⁺ ions move out,no further action potentials can be generated in a given membrane until the Na⁺,K⁺-ATPase pumps can restore the concentration gradient.

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Definitions:

Endocrine

Relates to the system of glands that release hormones directly into the bloodstream to regulate various bodily functions, including growth, metabolism, and mood.

Spinal Cord

A long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column.

Autonomic Nervous System

A part of the nervous system responsible for controlling involuntary bodily functions such as heartbeat and digestion.

Sympathetic

Referring to the part of the autonomic nervous system that prepares the body for action and stress responses, often described as "fight or flight."