Trochlea is a term used in anatomy to describe a cylindrical or spool-shaped surface. It can be found in various parts of the body, such as the knee joint, the eye socket, and the elbow. Synonyms for the word "trochlea" include pulley, wheel, groove, channel, trough, and socket. These words are often used to describe the function of a trochlea, which is to provide smooth movement and directional control of a moving part. In medical literature, trochlea is frequently used with terms such as trochlear nerve or trochlear muscle, which refer to specific anatomical structures associated with this term.