Cranial dorsal serrate muscle - Musculus serratus dorsalis cranialis

Anatomical hierarchy

General terms > Myology > Muscles of back > Cranial dorsal serrate muscle

Translations

Description

The cranial dorsal serrate muscle (Serratus dorsalis cranialis) is a muscle that originate in carnivore from the thoracolumbar fascia and spines of the first six to eighth thoracic vertebra and insert with single slips to the cranial and lateral aspect of the two to ten ribs (12th ribs in horse).

Origin: The thoracolumbar fascia and spines of the first six to eighth thoracic vertebra.

Insertion: Cranial border and lateral surfaces of ribs two to ten.

Action: Lift the ribs for inspiration.

Nerve: Intercostales.

Note : the cranial dorsal serrate muscle (Serratus dorsalis cranialis) is sometimes described as the cranial part of the "dorsal serrate muscle": this muscle is not termed in the Vth NAV because is an epaxial muscle that is completely divided into cranial and caudal parts with different innervation and function.


Text by Antoine Micheau, MD - Copyright IMAIOS

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