Sacrum Definition Anatomy

Developmentally the sacrum forms from five individual vertebrae that start to join during late adolescence and early adulthood to form a single bone by around the age of thirty. The sacrum contains a series of four openings on each side through which the sacral nerves run.

Anatomy Of The Spine Southern California Orthopedic Institute

The sacrum is a triangular shaped bone and consists of five segments s1 s5 that are fused together.

Sacrum definition anatomy. The sacrum is a little unusual in that it is differently shaped in males and females which is known as sexual dimorphism. Definition the sacrum is one complete bone roughly triangular in shape which joins together in one fused mass the five sacral vertebra of the pelvic region. It is located in a vertical position joined to the fifth and last lumbar vertebra above and the coccyx below.

Sacrum the large triangular wedge like bone that forms the centre of the back of the pelvis and the lower part of the vertebral column. The sacrum in human anatomy is a large triangular bone at the base of the spine that forms by the fusing of sacral vertebrae s1s5 between 18 and 30 years of age. Sacrum the collection of fused sacral vertebrae attached to the pelvic girdle.

The sacrum is a very strong bone that supports the weight of the upper body as it is spread across the pelvis and into the legs. The two projections at the sides of the sacrum are called the alae and articulate with the ilium at the l shaped sacroiliac joints. The sacrum situates at the upper back part of the pelvic cavity between the two wings of the pelvis.

In males it is narrower and longer. The sacrum consists of five fused broad vertebrae and terminates in the tail like coccyx. The upper part of the sacrum connects with the last.

The sacrum contains a series of four openings on each side through which the sacral nerves run. Sacrum definition is the part of the spinal column that is directly connected with or forms a part of the pelvis and in humans consists of five fused vertebrae. Sacrum definition a bone resulting from the fusion of two or more vertebrae between the lumbar and the coccygeal regions in humans being composed usually of five fused vertebrae and forming the posterior wall of the pelvis.

It forms joints with four other bones.

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