GENERAL HISTOLOGY

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: -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-3: -So why do hormones affect only their target cells in particular tissues? Because only those target cells have receptors for that particular hormone. Some hormones bind to receptors on the surface of target cells. Others enter the cells and bind to receptors in the cytoplasm or nucleus.