Gloria's friends have recently noticed a startling change in her behavior. She eats everything in sight but gains little, if any, weight. She speeds around the room as if she were taking amphetamines. She seems constantly tense and agitated, and has trouble sleeping. She has become impulsive and lately she seems to be upset by even the slightest stress. The source of Gloria's problems is probably an ________ gland.
A) overactive pituitary
B) overactive thyroid
C) underactive pituitary
D) underactive thyroid

Question

Quizplus · Accepted Answer

Gloria's symptoms suggest hyperthyroidism, which is caused by an overactive thyroid gland. The thyroid gland produces hormones that regulate metabolism, and an overactive gland can cause increased appetite, weight loss, restlessness, insomnia, and anxiety. It is not likely to be caused by an overactive pituitary gland or underactive thyroid gland.

Gloria's Friends Have Recently Noticed a Startling Change in Her