Second costal cartilage

Cartilago costalis II

Hyaline cartilage that carries the rib to the sternum and gives the chest wall its spring.

System
Cartilage
Region
Thorax
Sides
Paired: left and right
Second costal cartilage (Cartilago costalis II) of the cat, left side: a three-quarter view of the cartilage.

Where it runs from and to

What this structure is anchored to at each end, and what that lets it do.

Origin
Ventral end of its rib.
Insertion
Sternum for the sternal ribs, or the cartilage in front of it for the asternal ribs.
Action
Hyaline cartilage that carries the rib to the sternum and gives the chest wall its spring.

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

Measured on the specimen

What the second costal cartilage 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
Second costal cartilage
Latin (NAV)
Cartilago costalis II
Status
A valid term in the Nomina Anatomica Veterinaria
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