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The arcuate line of rectus sheath (the arcuate line or the semicircular line of Douglas) is a line of demarcation [1] corresponding to the free inferior margin of the posterior layer of the rectus sheath [2] inferior to which only the anterior layer of the rectus sheath is present [3] and the rectus abdominis muscle is therefore in direct contact with the transversalis fascia. [1]
The linea semilunaris (also semilunar line or Spigelian line) is described by Adriaan van den Spiegel (°1578 †1625) described the Linea Semilunaris as the line forming and marking the transition from muscle to aponeurosis in the transversus abdominis muscle of the abdomen. It needs to be distinguished from the lateral border of the rectus ...
Below the arcuate line Below this level, the aponeuroses of all three muscles (including the transversus) pass in front of the rectus. [ 2 ] [ 3 ] The posterior layer of the rectus sheath is thus absent and the rectus abdominis muscle is separated from the peritoneum only by the transversalis fascia . [ 2 ]
A Spigelian is the type of ventral hernia where aponeurotic fascia pushes through a hole in the junction of the linea semilunaris and the arcuate line, creating a bulge.It appears in the lower quadrant of the abdomen between an area of dense fibrous tissue and abdominal wall muscles causing a (Spigelian aponeurosis).
The rectus abdominis has many sources of arterial blood supply. Classification of the vascular anatomy of muscles: First, the inferior epigastric artery and vein (or veins) run superiorly on the posterior surface of the rectus abdominis, enter the rectus fascia at the arcuate line, and serve the lower part of
Above, it is loosely connected to the back part of the arcuate line, and here it is continuous with the iliac fascia. In front of this, as it follows the line of origin of the internal obturator , it gradually separates from the iliac fascia and the continuity between the two is retained only through the periosteum .
Business credit cards: Business credit cards work similarly to a revolving business line of credit, replenishing the amount you can borrow as you pay it back. But if you pay off the credit card in ...
In layman's terms, the muscle ends in the middle line of a person's abdomen. [ 1 ] : 248–250 Throughout the rest of its extent the aponeurosis passes horizontally to the middle line, and is inserted into the linea alba ; its upper three-fourths lie behind the rectus muscle and blend with the posterior lamella of the aponeurosis of the ...
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related to: linea semilunaris and arcuate line of credit