Physiology Quiz: Endocrinology - Part 41

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) G protein coupled receptor (GPCR)
	(B) Receptor tyrosine kinase (RTK)
	(C) Cytokine receptor-linked kinase
	(D) Cytoplasmic/nuclear receptor

	(A) Activation of adenylate cyclase (AC)
	(B) Inhibition of adenylate cyclase (AC)
	(C) Activation of phospholipase C (PLC)
	(D) Inhibition of phospholipase C (PLC)

	(A) Suckling of lactating breast
	(B) Distension of cervix near term
	(C) Contraction of uterine smooth muscle
	(D) An increase in plasma osmolarity
	(E) A decrease in plasma osmolarity

	(A) Myoepithelial cells of mammary glands
	(B) Uterine smooth muscle
	(C) Oxytocin-producing magnocellular neurons of the hypothalamus

	(A) Milk ejection from mammary glands
	(B) Milk production by mammary glands
	(C) Contraction of uterine smooth muscle