EVERYDAY SCIENCE

Detailed explanation-1: -The cells in these glands secrete specific chemicals called hormones. Hormones circulate around the body via the blood stream and modulate cellular or organ functions by binding with receptors in the target cells. Hormones that stimulate and control the activity of other endocrine glands are called trophic hormones.

Detailed explanation-2: -Hormone secretions in the pituitary glands control the growth and activity of three other endocrine glands: the thyroid, adrenals, and gonads. This chapter describes the structure, physiology and functions of pituitary gland, and general aspects of the regulation of anterior pituitary function.

Detailed explanation-3: -The endocrine system is made up of glands that make hormones. Hormones are the body’s chemical messengers. They carry information and instructions from one set of cells to another. The endocrine (EN-duh-krin) system influences almost every cell, organ, and function of our bodies.

Detailed explanation-4: -Hormones are chemical substances which are secreted by endocrine glands.

Detailed explanation-5: -The pituitary hormones include adrenocorticotropic hormone (ACTH); gonadotropins; thyroid-stimulating hormone (TSH), also called thyrotropin; growth hormone (GH); and prolactin. The first three of those hormones-ACTH, gonadotropins, and TSH-act on other glands.