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The posterior border of the ala of sacrum, shorter than the anterior, also presents two projections separated by a notch, the posterior superior iliac spine and the posterior inferior iliac spine. The posterior superior iliac spine serves for the attachment of the oblique portion of the posterior sacroiliac ligaments and the multifidus.
Posterior superior iliac spine; Posterior inferior iliac spine This page was last edited on 2 June 2023, at 20 ...
Posterior median line; Other anatomical lines include: Mid-pupillary line: A line running vertically down the face through the midpoint of the pupil when looking directly forward. Mid-inguinal point: A point midway between the anterior superior iliac spine and the pubic symphysis.
The posterior border of the ala, shorter than the anterior, also presents two projections separated by a notch, the posterior superior iliac spine and the posterior inferior iliac spine. The former serves for the attachment of the oblique portion of the posterior sacroiliac ligaments and the multifidus ; the latter corresponds with the ...
The pain is often a mild to moderate ache around the dimple or posterior superior iliac spine region. [12] The pain may become worse and sharp while doing activities such as standing up from a seated position or lifting the knee towards the chest during stair climbing.
These indentations are created by a short ligament stretching between the posterior superior iliac spine and the skin. Named after Venus, the Roman goddess of beauty, they are sometimes believed to be a mark of beauty. The features may be seen on both female and male backs, but seem to be more common and more prominent in women.
The rectus femoris muscle arises by two tendons: one, the anterior or straight, from the anterior inferior iliac spine; the other, the posterior or reflected, from a groove above the rim of the acetabulum. The sartorius muscle arises by tendinous fibres from the anterior superior iliac spine,
The sacrotuberous ligament is attached by its broad base to the posterior superior iliac spine, the posterior sacroiliac ligaments (with which it is partly blended), to the lower transverse sacral tubercles and the lateral margins of the lower sacrum and upper coccyx.