Infrasternal angle

Infrasternal angle
	The human rib cage.
	The thorax from the right.
Details
Identifiers
Latin	angulus infrasternalis
TA98	A02.3.04.008
TA2	1103
FMA	7573
	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

This article incorporates text in the public domain from page 118 of the 20th edition of Gray's Anatomy (1918)

Campbell LA, Klocke RA (April 2001). "Implications for the pregnant patient". Am. J. Respir. Crit. Care Med. 163 (5): 1051–4. doi:10.1164/ajrccm.163.5.16353. PMID 11316633.

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[pmid11316633-1] Campbell LA, Klocke RA (April 2001). "Implications for the pregnant patient". Am. J. Respir. Crit. Care Med. 163 (5): 1051–4. doi:10.1164/ajrccm.163.5.16353. PMID 11316633.