Hormone receptors are specialized proteins located on the surface of cells or within their interiors. They bind to specific hormones, which are chemical messengers produced by glands in the endocrine system. This binding triggers a response in the cell, influencing various physiological processes such as growth, metabolism, and mood regulation. There are two main types of hormone receptors: membrane receptors, which are found on the cell surface, and intracellular receptors, located inside the cell. Each receptor type is specific to certain hormones, ensuring that only the appropriate signals are received and acted upon, maintaining the body's balance and function.