ANATOMY

Detailed explanation-1: -A target cell responds to a hormone because it bears receptors for the hormone. In other words, a particular cell is a target cell for a hormone if it contains functional receptors for that hormone, and cells which do not have such a receptor cannot be influenced directly by that hormone.

Detailed explanation-2: -A hormone interacts only with certain target cells, cells that recognize the hormone’s chemical structure. A hormone and its target cell t together the way a key ts into a lock. The endocrine glands include the hypothalamus, pituitary, thyroid, parathyroid, adrenal, thymus, and pancreas.

Detailed explanation-3: -Target cells are cells that are receptive to a secreted hormone. dependent on three factors; the hormone levels in the blood, the receptor levels on the target cell, and hormone–receptor affinity.

Detailed explanation-4: -Hormones travel throughout the body, either in the blood stream or in the fluid around cells, looking for target cells. Once hormones find a target cell, they bind with specific protein receptors inside or on the surface of the cell and specifically change the cell’s activities.

Detailed explanation-5: -Codocytes, also known as target cells, are red blood cells that have the appearance of a shooting target with a bullseye.