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19 sty 2022 · The arcuate line, also known as the semicircular line of Douglas, is a curved line found posterior to the rectus abdominis muscle bilaterally, between the umbilicus and the pubic symphysis. This anatomical finding may not always be present, and its exact position may vary.
The pelvis is divided by an oblique plane passing through the prominence of the sacrum, the arcuate and pectineal lines, and the upper margin of the symphysis pubis, into the greater and the...
The arcuate line of the ilium is a smooth, curved ridge found on the internal surface of the ilium in the pelvic bone, marking the boundary between the true pelvis above and the false pelvis below. It serves as an important landmark for anatomical orientation and surgical procedures.
The arcuate line of ilium (or linea terminalis or pelvic inlet) divides the inner aspect of the ilium into anterosuperior and posteroinferior regions: The anterosuperior region is a concave area called the iliac fossa, which is part of the false pelvis as it lies above the pelvic inlet.
This illustration includes the ilium, arcuate line, pubis, ischium, pubis arch, and sacrum. Gray's Anatomy From: Anatomy, Bony Pelvis and Lower Limb: Pelvic Bones
Define the pelvic girdle and describe the bones and ligaments of the pelvis; Explain the three regions of the hip bone and identify their bony landmarks; Describe the openings of the pelvis and the boundaries of the greater and lesser pelvis
The pelvic brim (edge of pelvic inlet) is formed by the arcuate lines of the ilia, the pectineal lines of the pubis, the upper margin of the pubic symphysis and the sacral promontory. Above, abdominal cavity; below, pelvic cavity. Viewed from above, the pelvic brim is smooth, almost circular.
