rotator

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Related to rotatores: multifidus

ro·ta·tor mus·cle

1. one of the rotatores (muscles);
2. muscle that produces a rotation, alone or in concert with other rotators, around an axis, for example, rotator muscles of vertebral column.
Synonym(s): musculus rotator [TA], rotator

ro·ta·to·res (mus·cles)

[TA]
deepest of the three layers of transversospinalis muscles, chiefly developed in the thoracic region; they arise from the transverse process of one vertebra and are inserted into the root of the spinous process of the next two or three vertebrae above; action, traditionally described as a column, it is more likely that these muscles, provided with a very high density of muscle spindles, are organs of proprioception; nerve supply, dorsal primary rami of the spinal nerves.
Synonym(s): musculi rotatores [TA]

rotator

(rō′tā′tər)
n.
1. One that rotates.
2. pl. rotatores (rō′tə-tôr′ēz) Anatomy A muscle that serves to rotate a part of the body.

rotator

[rō′tātər]
Etymology: L, rotare, to rotate
a muscle that rotates a structure around its axis, as the cervical, thoracic, and lumbar musculi rotatores, which function to extend and rotate the vertebral column toward the opposite side.

ro·ta·tor

(rō'tā-tŏr)
A muscle by which a part can be turned circularly.
See also: rotation

rotator

muscle which on contraction moves a body part through all/part of a circle

rotator

an obstetrical instrument used in cows and mares. See rotation fork.