The development of a goiter indicates that ________. a. the anterior pituitary is abnormally enlarged b. there is hypertrophy of the thyroid’s follicle cells c. there is an excessive accumulation of colloid in the thyroid follicles d. the anterior pituitary is secreting excessive growth hormone

Which of the following statements about the thyroid gland is true? a. It is located anterior to the trachea and inferior to the larynx. b. The parathyroid glands are embedded within it. c. It manufactures three hormones. d. all of the above

The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of ________. a. blood vessels b. nerve axons c. cartilage d. bone

A small molecule binds to a G protein, preventing its activation. What direct effect will this have on signaling that involves cAMP? a. The hormone will not be able to bind to the hormone receptor. b. Adenylyl cyclase will not be activated. c. Excessive quantities of cAMP will be produced. d. The phosphorylation cascade will be initiated.

Which of the following statements about insulin is true? a. Insulin acts as a transport protein, carrying glucose across the cell membrane. b. Insulin facilitates the movement of intracellular glucose transporters to the cell membrane. c. Insulin stimulates the breakdown of stored glycogen into glucose. d. Insulin stimulates the kidneys to reabsorb glucose into the bloodstream.