Uberon definition : The rectus abdominis muscle is a paired muscle running vertically on each side of
the anterior wall of the abdomen. There are two parallel sets of muscles, separated
by a midline band of connective tissue called the linea alba (white line). It extends
from the pubic symphysis/pubic crest inferiorly to the xiphisternum/xiphoid process
and lower costal cartilages (5-7) superiorly. It is contained in the Rectus sheath.
The rectus is usually crossed by three fibrous bands licked by the tendinous inscriptions.
[WP,modified].;
Uberon Taxon note : While the 'sixpack' is by far the most common configuration of the muscle bellies
of the rectus, there exist rare anatomic variations which result in the appearance
of eight ('eightpack'), ten, or-even rarer-asymmetrically arranged segments. All these
variations are functionally equivalent;
The rectus abdominis muscle is a paired muscle running vertically on each side of
the anterior wall of the abdomen. There are two parallel sets of muscles, separated
by a midline band of connective tissue called the linea alba (white line). It extends
from the pubic symphysis/pubic crest inferiorly to the xiphisternum/xiphoid process
and lower costal cartilages (5-7) superiorly. It is contained in the Rectus sheath.
The rectus is usually crossed by three fibrous bands licked by the tendinous inscriptions.
[WP,modified].