circumducció

Circumduction is a circular motion of a limb or the eye. In anatomy, it describes the movement of a body part, such as a joint, in a circular path. This type of movement is possible at ball-and-socket joints like the hip and shoulder, where the bone can move in multiple directions. Circumduction involves a combination of flexion, extension, abduction, and adduction. Imagine tracing a circle with your hand; this is circumduction. It's a complex movement requiring coordinated action of several muscles.

In ophthalmology, circumduction refers to the movement of the eyeball. The extrinsic muscles of the eye, such as the superior rectus, inferior rectus, medial rectus, lateral rectus, superior oblique, and inferior oblique, work together to allow the eye to move in various directions, including circular paths. This ability is crucial for tracking moving objects, scanning an environment, and maintaining visual focus. The precise control over these muscles enables smooth and coordinated eye movements. The term highlights the full range of rotational motion possible at these joints.