Human Anatomy, Part 1 - K. A. Dyubenko, A. K. Kolomiytsev, Yu. B. Chaykovsky 2002

Special Part
Myology, myologia [the study of muscles] — Muscles and Fasciae of the Trunk
Muscles and Fasciae of the Abdomen — Abdominal Regions, regiones abdominales

The abdomen (abdomen) is the part of the body belonging to the trunk. It is located between the Thorax and the pelvis. The upper boundary of the abdomen is formed by the costal margin and the xiphoid process of the Sternum; the posterior boundary by the posterior axillary line (tinea axillaris posterior), and the lower boundary by the iliac crests, anterior superior iliac spines, and inguinal ligaments. The shape of the abdomen depends on The Human Body type. In individuals with a brachyorphic (short and broad) body type, it is short and wide, whereas in dolichomorphic individuals, it is narrow and long.

For practical purposes, the following regions are distinguished on the anterior abdominal wall (see Fig. 14A):

Upper part

- epigastrium,

epigastric region, regio epigastrica,

hypochondriac region [hypochondrium],

regio hypochondrica [hypochondrium]

Middle part

- mesogastrium,

umbilical region, regio umbilicalis,

lateral regions (right and left),

regiones laterales (dextra et sinistra)

Lower part

- hypogastrium,

pubic region, regio pubica,

inguinal regions (right and left),

regiones inguinales (dextra et sinistra).


Last update: 08/08/2026

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