What Would Be a Consequence of a Person Having Na

question 1

Multiple Choice

What would be a consequence of a person having Na⁺ levels in the blood and interstitial fluids that are well below normal?

• A) Neurons would not be able to undergo normal action potentials.
• B) Action potentials would occur with greater frequency.
• C) Neurons would all be depolarized.
• D) Neurons would remain refractory following closure of voltage- gated sodium channels.
• E) K⁺ channels would open to compensate for changes in membrane potential.

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Definitions:

Thalamus

A brain structure that acts as a relay center, channeling sensory information to the cerebral cortex and regulating consciousness, sleep, and alertness.

Hypothalamus

A region of the brain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems, and involved in sleep and emotional activity.

Pituitary Gland

A small, pea-sized gland located at the base of the brain, responsible for the production and regulation of many hormones that control various bodily functions.

Hippocampus

The hippocampus is a brain structure involved in the formation of new memories and is also associated with learning and emotions.