What is the arcuate line?

What is the arcuate line?

The arcuate line is an area of demarcation visible from the peritoneal surface of the abdominal wall, residing one-third the distance between the umbilicus and the pubis. The arcuate line can be a sharp demarcation, or it can be a gradual transition zone where the fibers of the posterior sheath gradually disappear.[1]

What is the function of the arcuate line?

The arcuate line of the abdomen (or linea semicircularis) is a horizontal line that demarcates the lower limit of the posterior layer of the rectus sheath. It is also where the inferior epigastric vessels perforates the rectus abdominus.

What spinal level is the arcuate line?

The arcuate line was found to lie at 74.6% of the distance from the pubic symphysis to the umbilicus, and 32.7% of the distance from the pubic symphysis to the xiphoid. This location was 1.8 +/- 1.7 cm superior to the level of the anterior superior iliac spines (ASIS).

Is the arcuate line on the medial surface?

The arcuate line is found on the medial surface of the ilium. The medial surface of the ilium is divided into superior and inferior parts by a ridge – the anterior part of this ridge is known as the arcuate line and forms part of the border of the pelvic inlet.

How do you identify arcuate lines?

The arcuate line can be seen from the peritoneal surface of the rectus sheath as a superiorly convex line. It is roughly positioned half way between the umbilicus and the pubic crest. Clinically, the arcuate line is important as the: site of entry of the inferior epigastric artery into the rectus sheath.

Is C section above or below arcuate line?

At the level of a low-transverse incision, the fascia entirely overlies the rectus muscles. Above the arcuate line, which is located halfway between the umbilicus and the pubic crest, this fascia splits and envelops the rectus abdominis muscles.

What is linea alba?

Linea Alba is a condition in which the inner tissue of your cheek, also known as buccal mucosa hardens. This results in the formation of a white ridge in the pink tissue of your cheek. This hardening is due to the deposition of a material called keratin.

What merges with the arcuate line of the ilium?

1. The lower edge of the iliac fossa of the ilium. The arcuate line is a continuation of the pectineal line of the pubis, and it continues up and back along the ilium to merge with the edge of the sacral ala and then the sacral promontory.

How do you find the arcuate line?

The arcuate line occurs about half of the distance from the umbilicus to the pubic crest, but this varies from person to person. If one dissects the anterolateral abdominal wall, the arcuate line may be difficult to see, since all the aponeuroses are translucent.

Why do I have linea alba?

Linea alba is evidence of irritation inside your mouth. Typically, it’s caused by chronic friction between your teeth and the lining of your cheek, also known as your buccal mucosa. It can also be caused by other sources of friction in the mouth, such as: dentures that rub against each other.

Does linea alba go away?

The good news is that once you have your baby, linea nigra typically starts fading in the months following delivery. But for some women, it never completely goes away, and it may come back if you get pregnant again. And, unfortunately, there’s really nothing you can do to safely prevent or treat it.

What structure is superior to the arcuate line of hip bone?

The human ilium is divisible into the body and the ala, or wing. These two parts are separated on the superior surface by a curved line known as the arcuate line, and on the inferior surface by the margin of the acetabulum.

What is a normal pelvis?

Pelvis. The gap enclosed by the bony pelvis, called the pelvic cavity, is the section of the body underneath the abdomen and mainly consists of the reproductive organs (sex organs) and the rectum, while the pelvic floor at the base of the cavity assists in supporting the organs of the abdomen.

Where is the pelvic bone located?

According to the Encyclopedia Britannica, the pelvic bone (or, hip bone) is made up of the pubic bone ( also called pubis), the ilium, the ischium, sacrum, and coccyx. The pubic bone (pubis) is located at the base of the pelvic girdle and join the 2 hip bones together.

What is osseous pelvis?

The osseous pelvis is a well-recognized site of origin of numerous primary and secondary musculoskeletal tumors. The radiologic evaluation of a pelvic lesion often begins with the plain film and proceeds to computed tomography (CT), or magnetic resonance imaging (MRI) and possibly biopsy.

What are bones in the pelvic area?

The pelvic skeleton is formed posteriorly (in the area of the back), by the sacrum and the coccyx and laterally and anteriorly (forward and to the sides), by a pair of hip bones. Each hip bone consists of 3 sections, ilium, ischium, and pubis.