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.
(1) Oxytocin belongs to this chemical class of hormones:
(2) Another name for the antidiuretic hormone (ADH) is:
(3) Endocrine glands are ductless glands.
(4) This plasma protein has the capacity to bind nearly all fat-soluble hormones.
(5) It is estimated that in the thyroid gland, nearly __________ week's supply of the thyroid hormones is bound to thyroglobulin within the colloid of thyroid follicles.