Bobby Has Just Finished a Triathlon and Is Gulping Down

question 222

Multiple Choice

Bobby has just finished a triathlon and is gulping down a sports drink. His thirst is the result of __________

• A) dehydration.
• B) extracellular thirst.
• C) intracellular thirst.
• D) intercellular thirst.

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Definitions:

Hypothalamus

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

Anterior Pituitary

A glandular portion of the pituitary gland that produces and secretes hormones regulating various bodily functions.

Follicular Cells

Epithelial cells in the thyroid gland that produce and secrete thyroid hormones Thyroxine (T4) and Triiodothyronine (T3).

Parafollicular Cell

Cells in the thyroid gland that produce calcitonin, a hormone that regulates calcium levels in the blood.