Diaphragm

Diaphragma

  • Muscle
  • Body
  • Single, on the midline
  • Pig

The principal muscle of inspiration; its descent enlarges the thorax.

About the diaphragm of the pig

Diaphragm is a muscle of the body (trunk), a single structure on the midline. Its name in the Nomina Anatomica Veterinaria is Diaphragma. You can turn it above, see it in place in the body of the pig, 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
Lumbar vertebrae by two crura, the costal arch and the inner surfaces of the caudal ribs, and the sternum.
Insertion
Central tendon.
Action
The principal muscle of inspiration; its descent enlarges the thorax.
Nerve
Phrenic nerve, from the fifth to the seventh cervical nerves.

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

Terminology

English
Diaphragm
Latin (NAV)
Diaphragma
Status
A valid term in the Nomina Anatomica Veterinaria

The diaphragm in other animals

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

Questions about the diaphragm

What is the Latin name of the diaphragm?
In the Nomina Anatomica Veterinaria, the diaphragm is called Diaphragma.
Where is the diaphragm of the pig?
Diaphragm is a muscle of the body (trunk), a single structure on the midline.
Where does the diaphragm originate and insert?
Origin: Lumbar vertebrae by two crura, the costal arch and the inner surfaces of the caudal ribs, and the sternum. Insertion: Central tendon.
What nerve supplies the diaphragm?
Phrenic nerve, from the fifth to the seventh cervical nerves.
What does the diaphragm do?
The principal muscle of inspiration; its descent enlarges the thorax.

See the diaphragm inside the whole pig.

Vetomica opens on this structure with every layer of the pig 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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