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the ala or the wing. The sacral ala attaches to the psoas major and supports the lumbosacral trunk, and is formed from the transverse costal processes of the first sacral seg-ment. The superior articular processes of the sacrum project from the base on either side. Similar to their lumbar coun-terparts, the superior articular processes are oval ...
2 sie 2024 · Gross anatomy. The sacrum is an irregularly-shaped bone, shaped roughly like an inverted triangle, with its base superior and apex inferior. It is curved with an anterior concavity and posterior convexity.
30 paź 2023 · Regarded as the keystone of the human body, the sacrum is important because it forms a link between the spine and the iliac bones, and also has an important part to play in hip stability. Sacrum is sexually dimorphic. It is shorter and wider in females than in males.
Computed tomography (CT) provides an accurate means of evaluating the curved surface of the sacrum. However, a thorough knowledge of the normal anatomy is required in order to appreciate pathologic changes in this area [1-4]. Part 1 of our paper addresses the normal CT anatomy.
the lateral sacral mass is the ala of the sacrum. The wing-shaped ala courses in an anterior-inferior direction. It is important to note that the cephalad aspects of the S1 ver-tebral body and ala are not in the same plane. The sloped angle of the ala relative to the cephalad border of the S1 vertebral body is approximately 30° caudally to the ...
The sacral region (sacrum) is at the bottom of the spine and lies between the fifth segment of the lumbar spine (L5) and the coccyx (tailbone). The sacrum is a triangular-shaped bone and consists of five segments (S1-S5) that are fused together.
In the present paper, anatomical varia-tions of the sacrum have been classified in three main categories: 1 — numerical variations, 2 — morpholog - ical variations, and 3 — rare (unclassified) variations. Numerical variations Most anatomical variations in the lumbosacral area are associated with differences in the sacral ver - tebrae or ...
