The pituitary gland is called the master gland because it
Correct answer: D. controls the secretion of several other endocrine glands
- A. is the largest endocrine gland
- B. sits outside the brain
- C. secretes digestive enzymes
- D. controls the secretion of several other endocrine glands
Explanation
Pituitary hormones such as TSH and ACTH direct the thyroid and adrenal cortex, and its link with the hypothalamus places it at the top of many control chains. Size is irrelevant; control is what earns the title.
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About Receptors
Receptors are specialized cells or proteins that detect stimuli such as light, sound, pressure, temperature and chemicals, then initiate responses through sensory or hormonal pathways. Questions distinguish sensory receptors from effectors, compare receptor types, and examine stimulus conversion into nerve impulses, including the roles of rods, cones, chemoreceptors and mechanoreceptors.
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