MuscleBack — deep (transversospinalis)
Rotatores
Latin: Mm. rotatores
Location: Back
View the rotatores in 3DOrigin
Transverse processes of each vertebra.
Insertion
Lamina and spinous process of the vertebra one or two levels above.
Action
Fine rotation and proprioception of the spine — the body's position sensors in miniature.
Nerve supply
Dorsal rami.
Blood supply
Segmental arteries.
Clinical relevance
Dense muscle spindles make them the spine's gyroscope; their dysfunction distorts position sense in chronic back pain.
Educational anatomy reference, not medical advice. About this content.