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Infrasternal angle
from Wikipedia
Infrasternal angle
The human rib cage.
The thorax from the right.
Details
Identifiers
Latinangulus infrasternalis
TA98A02.3.04.008
TA21103
FMA7573
Anatomical terminology

The lower opening of the thorax is formed by the twelfth thoracic vertebra behind, by the eleventh and twelfth ribs at the sides, and in front by the cartilages of the tenth, ninth, eighth, and seventh ribs, which ascend on either side and form an angle, the infrasternal angle or subcostal angle, into the apex of which the xiphoid process projects.

Pregnancy causes the angle to increase from 68° to 103°.[1]

References

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