Costal arch
Arcus costalis
The cartilaginous arch that closes the ventral border of the ribcage and gives the diaphragm and the abdominal muscles their attachment.
About the costal arch of the pig
Costal arch is a cartilage of the body (trunk), one on each side of the body. Its name in the Nomina Anatomica Veterinaria is Arcus costalis. 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
What this structure is anchored to at each end, and what that lets it do.
- Origin
- Costal cartilages of the asternal ribs, each overlapping the one in front.
- Insertion
- The last sternal cartilage.
- Action
- The cartilaginous arch that closes the ventral border of the ribcage and gives the diaphragm and the abdominal muscles their attachment.
Written for Vetomica in its own words from the standard reference anatomy of the pig; the books it was checked against are listed below.
Measured on the specimen
What the costal arch is in contact with in the model itself, with the share of the other structure’s surface it covers. A contact is not always a joint: bones that simply lie against one another are in this list too.
Measured on the left side.
Terminology
- English
- Costal arch
- Latin (NAV)
- Arcus costalis
- Status
- A valid term in the Nomina Anatomica Veterinaria
The costal arch in other animals
The same structure in the other animals in the Library, to compare.
Questions about the costal arch
- What is the Latin name of the costal arch?
- In the Nomina Anatomica Veterinaria, the costal arch is called Arcus costalis.
- Where is the costal arch of the pig?
- Costal arch is a cartilage of the body (trunk), one on each side of the body.
- Where does the costal arch originate and insert?
- Origin: Costal cartilages of the asternal ribs, each overlapping the one in front. Insertion: The last sternal cartilage.
See the costal arch 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.
