|study of the structure of the body and its parts without the use of a microscope|
|general theory regarding the existence of all living systems, their structure, behavior, development|
receptor re·cep·tor (rĭ-sěp'tər)
A specialized cell or group of nerve endings that responds to sensory stimuli.
A molecular structure or site on the surface or interior of a cell that binds with substances such as hormones, antigens, drugs, or neurotransmitters.
|receptor (rĭ-sěp'tər) Pronunciation Key