a bandlike structure encircling and supporting the shoulder joint, formed by four muscles attached to and merging with the joint capsule.
(anatomy) the structure around the shoulder joint consisting of the capsule of the joint along with the tendons of the adjacent muscles
rotator cuff n.
A set of muscles and tendons that secures the arm to the shoulder joint and permits rotation of the arm. Also called musculotendinous cuff.
A group of muscles and tendons attaching the shoulder to the scapula (shoulder blade) that provide stability to the shoulder joint and act to rotate the arm. Injuries to the rotator cuff often happen when the arm is repeatedly moved over the head with great force, as when pitching a baseball.
noun, plural rotators for 1, 3, rotatores [roh-tuh-tawr-eez, -tohr-] /ˌroʊ təˈtɔr iz, -ˈtoʊr-/ (Show IPA), for 2. 1. a person or thing that rotates. 2. Anatomy. a muscle serving to rotate a part of the body. 3. Nautical. a bladed device streamed to rotate in the water to actuate a patent log. noun 1. a […]
- Rotator muscle
rotator muscle n. Any of a number of short transversospinal muscles chiefly developed in cervical, lumbar, and thoracic regions, arising from the transverse process of one vertebra and inserted into the root of the spinous process of the next two or three vertebrae above, with nerve supply from the dorsal branches of the spinal nerve, […]
adjective 1. pertaining to or of the nature of rotation: rotatory motion. 2. rotating, as an object. 3. passing or following in rotation or succession. 4. causing rotation, as a muscle. adjective 1. of, relating to, possessing, or causing rotation rotatory ro·ta·to·ry (rō’tə-tôr’ē) adj. Of, relating to, causing, or characterized by rotation. Occurring or proceeding […]
- Rotatory nystagmus
rotatory nystagmus ro·ta·to·ry nystagmus (rō’tə-tôr’ē) n. A slight movement of the eyes around the visual axis.