👉 The term "exteroceptor" refers to receptors or ligands that are located at the surface of cells and bind to molecules, such as neurotransmitters or hormones, which are released into the cell. These receptors allow for a chemical signal to be transmitted from one part of the body to another, facilitating communication between different parts of the body. Exteroceptors can also play a role in regulating body functions by sensing changes in the environment and responding accordingly.