Caudal dorsal serrate muscle

Musculus serratus dorsalis caudalis

  • Muscle
  • Chest
  • Left
  • Dog

Pulls the last ribs caudally, helping expiration.

About the caudal dorsal serrate muscle of the dog

Caudal dorsal serrate muscle is a muscle of the chest (thorax), on the left side. Its name in the Nomina Anatomica Veterinaria is Musculus serratus dorsalis caudalis. You can turn it above, see it in place in the chest of the dog, and open it inside the whole animal in Vetomica.

Where it runs from and to

A muscle is told apart from its neighbours by what it takes hold of at each end, which is also what decides what it does when it shortens.

Origin
Thoracolumbar fascia over the cranial lumbar region.
Insertion
Caudal edges of the last three ribs.
Action
Pulls the last ribs caudally, helping expiration.
Nerve
Intercostal nerves of the caudal thoracic segments.

Written for Vetomica in its own words from the standard reference anatomy of the dog; the books it was checked against are listed below.

What it works on

Bones it takes hold of

Muscles and ligaments it works with

Terminology

English
Caudal dorsal serrate muscle
Latin (NAV)
Musculus serratus dorsalis caudalis
Status
A valid term in the Nomina Anatomica Veterinaria

References

Where to read this structure in full, and where the named parts above were read.

  • NAV 2017Myologia
  • Miller's Anatomy of the Dog, 5th ed.The Muscular System: muscles of the thoracic wall
  • Dyce, Sack & WensingThe thorax of the dog and cat

The caudal dorsal serrate muscle in other animals

The same structure in the other animals in the Library, to compare.

Questions about the caudal dorsal serrate muscle

What is the Latin name of the caudal dorsal serrate muscle?
In the Nomina Anatomica Veterinaria, the caudal dorsal serrate muscle is called Musculus serratus dorsalis caudalis.
Where is the caudal dorsal serrate muscle of the dog?
Caudal dorsal serrate muscle is a muscle of the chest (thorax), on the left side.
Which bones does the caudal dorsal serrate muscle attach to?
Caudal dorsal serrate muscle takes hold of Rib 13 and Ribs.
Where does the caudal dorsal serrate muscle originate and insert?
Origin: Thoracolumbar fascia over the cranial lumbar region. Insertion: Caudal edges of the last three ribs.
What nerve supplies the caudal dorsal serrate muscle?
Intercostal nerves of the caudal thoracic segments.
What does the caudal dorsal serrate muscle do?
Pulls the last ribs caudally, helping expiration.

See the caudal dorsal serrate muscle inside the whole dog.

Vetomica opens on this structure with every layer of the dog around it: peel back the skin and the muscles, cut a section through it, X-ray it, and practise naming it until you stop getting it wrong.

Free for 7 days, no card. After that the skeletons stay free.

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