Physiology Quiz: Endocrinology - Part 50

Endocrinology is defined as the study of how chemical messenger molecules, referred to as hormones, influence physiological processes. By definition, a hormone is a signaling molecule that is released into the bloodstream, where the hormone can then travel to distant target cells and tissues within the body. Along with the nervous system, the hormones of the endocrine system provide an important means by which information travels within the body. Test your basic knowledge of the endocrine system by taking this simple quiz.

	(A) Increased basal metabolic rate (BMR)
	(B) Tachycardia
	(C) Exophthalmos
	(D) Increased O₂ consumption
	(E) Muscle wasting

	(A) Weight gain
	(B) Low basal metabolic rate (BMR)
	(C) Bradycardia
	(D) Tachycardia
	(E) Lethargy

	(A) 3,5,3'-Triiodothyronine (T₃)
	(B) 3,3',5'-Triiodothyronine (reverse T₃ or rT₃)
	(C) 3,5,3',5'-Tetraiodothyronine (T₄; also known as thyroxine)

	True
	False

	True
	False