Aphy 102 Midterm Exam - Ivy Tech

What is a hormone and how does it act? {Ans: } Hormones are chemical messengers that are responsible for regulation. They are secreted into body fluids, mainly blood. It has specific actions on target tissues, which are any tissue that has specific receptors for that particular hormone.What is a paracrine gland? {Ans: } a secretion that enters interstitial fluid but affects only neighboring cellsWhat is an autocrine gland? {Ans: } A secretion that only affects the secreting cell.What is an endocrine gland? {Ans: } A gland that secretes a substance (a hormone) into the bloodstream and act on target cellsWhat is an exocrine gland? {Ans: } A ducted gland that produces a secretion onto a body surface.Where is the thymus located? {Ans: } mediastinum; behind the sternumWhere is the pineal gland located? {Ans: } center of brainWhere are the reproductive organs located? {Ans: } abdomen; pelvicWhere is the pituitary gland located? {Ans: } sella turcica of the sphenoid bone; base of the brainWhere are the adrenal glands located? {Ans: } on top of each kidneyWhere is the pancreas located? {Ans: } posterior to the stomachWhat are the two steroid hormones? {Ans: } Sex hormones and adrenal cortex hormones; estrogen and