sacrum


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sacrum

 [sa´krum]
the triangular bone at the base of the spine formed by usually five fused vertebrae wedged dorsally between the two hip bones. See Appendix 3-3.

sa·crum

, pl.

sa·cra

(sā'krŭm, sā'kră), [TA]
The segment of the vertebral column forming part of the pelvis; a broad, slightly curved, spade-shaped bone, thick above, thinner below, closing in the pelvic girdle posteriorly; it is formed by the fusion of five originally separate sacral vertebrae; it articulates with the last lumbar vertebra, the coccyx, and the hip bone on either side.
[L. (lit. sacred bone), neuter of sacer (sacr-), sacred]

sacrum

/sa·crum/ (sa´krum) [L.] the triangular bone just below the lumbar vertebrae, formed usually by five fused vertebrae and lodged dorsally between the hip bones.
scimitar sacrum  a congenitally deformed sacrum resembling a scimitar, usually accompanied by other defects such as anorectal or neural anomalies.

sacrum

(sā′krəm, săk′rəm)
n. pl. sacra (sā′krə, săk′rə)
A triangular bone made up of five fused vertebrae and forming the posterior section of the pelvis.

sacrum

[sā′krəm, sak′rəm]
Etymology: L, sacer, sacred
the large, triangular bone at the dorsal part of the pelvis, inserted like a wedge between the two hip bones. The base of the sacrum articulates with the last lumbar vertebra, and its apex articulates with the coccyx. Various muscles attach to its spinal crest. The sacrum is shorter and wider in women than in men. sacral, adj.
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Sacrum

sa·crum

, pl. sacra (sā'krŭm, -kră) [TA]
The segment of the vertebral column forming part of the pelvis; a broad, slightly curved, spade-shaped bone, thick above, thinner below, closing in the pelvic girdle posteriorly; it is formed by the fusion of five originally separate sacral vertebrae; it articulates with the last lumbar vertebra, the coccyx, and the hip bone on either side.
[L. (lit. sacred bone), neuter of sacer (sacr-), sacred]
Enlarge picture
SACRUM AND COCCYX: (ANTERIOR VIEW)

sacrum

(sa'krum) [L., sacred]
The triangular bone situated dorsal and caudal from the two ilia between the fifth lumbar vertebra and the coccyx. It is formed of five united vertebrae and is wedged between the two innominate bones, its articulations forming the sacroiliac joints. It is the base of the vertebral column and, with the coccyx, forms the posterior boundary of the true pelvis. The male sacrum is narrower and more curved than the female sacrum.
Synonym: sacral bone See: illustration

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 consists of five fused, broad vertebrae and terminates in the tail-like COCCYX.

sacrum

the collection of fused sacral vertebrae attached to the PELVIC GIRDLE.

Sacrum

The triangle-shaped bone located between the fifth lumbar vertebra and the coccyx that consists of five vertebrae fused together. The sacrum joins on each side with the bones of the pelvis.

os sacrum

; sacrum vertebral column segment forming part of the pelvis and closing the posterior portion of the two halves of the pelvic girdle; formed from fusion of five sacral vertebrae (S1-S5); articulates superiorly with fifth lumbar vertebra (L5), inferiorly with the coccyx, and laterally with hip bones

sacrum,

n triangular bone at the base of the spine.
sacrum, posterior,
n condition in which backward rotation of the sacrum and side-bending to the side opposite the rotation have occurred. Resulting tissue changes may be located at the lower pole on the rotated side.
sacrum, posterior translated,
n condition in which the whole sacrum has moved backward between the ilia. Forward motion is restricted, and backward motion is freer.

sacrum

the triangular-shaped bone between the lumbar and coccygeal vertebrae; formed usually by five fused vertebrae (four in pigs, three in dogs) that are wedged dorsally between the two hip bones. See also Table 10.
References in periodicals archive ?
Measurement of maximum length of sacrum was recorded by the distance from antero-superior margin of promontory to the middle of anteroinferior margin of the last sacral vertebra.
The following parameters were noted: presence or absence of intervertebral discs in the sacrum and coccyx; vertebral levels at which the discs were present; maximum and minimum vertical thickness of the intervertebral disc.
Nakamura, "Fatigue fracture of the sacrum in long distance runner," Japanese Journal of Orthopaedic Sports Medicine, vol.
Caption: FIGURE 2: MRI with osteomyelitis of the sacrum as well as free air bubbles in the sacrum.
Nerman will then treat the dysfunctional sacrum with manual medicine to reset the hip bones and sacrum, with the goal of all treatments to free up motion.
The sacrum is the triangular bone at the bottom of the spine that joins with the hip bones to make up the bony pelvis.
In the current study sacrum with five pairs of sacral foramina are formed due to complete bilateral fusion of fifth lumbar vertebra with the first sacral vertebra or complete bilateral fusion of first coccygeal vertebra with fifth sacral vertebra (Sacralization of fifth lumbar vertebra or sacralization of first coccygeal vertebra), the sacrum consisting of six segments.
Involvement of the sacrum is extremely rare, and it has also been reported that the diagnosis of osteoid osteoma in the sacrum can be delayed compared with other skeletal sites.
The development of a fistulous tract between the pouch and the sacrum is rarely reported.
For the second stage of the surgery, the patient was placed prone, and the sacrum was approached with a midline incision over the lower lumbar spine and the sacrum.
The sacral base angle is determined by measuring the angle formed between a line drawn along the base (top) of the sacrum and a horizontal line (Figure 2).
Sacrum is that part of the skeleton which transmits the body weight to the limbs.