回旋肌 - Musculi rotatores

描述

The rotators muscles are long and short muscle bundles deep to the multifidi muscles in cranial thoracic region.

Rotatares Longi 

Origin: Medial surface of the multifidus muscle.

Insertion: From the transverse processes of the tenth to the first thoracic vertebrae.

Action: Rotation of the greater cranial portion of the thoracic vertebral column about the longitudinal axis in unilateral action; otherwise, fixation.

Nerve: Medial branches of the rami dorsales of the thoracic nerves.

 

Rotatares Brevis 

Origin: Medial surface of the multifidus muscle.

Insertion: Spinous processes of the first through tenth thoracic vertebrae.

Action: Rotation of the greater cranial portion of the thoracic vertebral column about the longitudinal axis in unilateral action; otherwise, fixation.

Nerve: Medial branches of the rami dorsales of the thoracic nerves


Text by Antoine Micheau, MD - Copyright IMAIOS
Illustrated Veterinary Anatomical Nomenclature - 3rd edittion - Gheorghe M. Constantinescu, Oskar Schaller - Enke
Miller's Anatomy of the Dog, 4th Edition - Evans & de Lahunta- Elsevier

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