Normal AnatomySacrum
triangular bone composed of five fused sacral
vertebrae, located inferiorly to the
lumbar spine. Laterally, the sacrum articulates with the
ilium bilaterally forming the sacroiliac joints. See
Fig.1,
Fig.2,
Fig.3,
Fig.4. The anatomical structures displayed in figures 1- 4 are listed in Table 1. For further information, see under individual structure. See also
genital organs, female (II), Fig. 1,
genital organs, female (II), Fig. 7,
genital organs, female (II), Fig. 14,
genital organs, male (II), Fig. 1,
genital organs, male (II), Fig. 8,
pelvis (II), Fig. 1,
pelvis (II), Fig. 3,
pelvis (II), Fig. 4,
pelvis (II), Fig. 7,
urinary bladder (II), Fig. 1,
urinary bladder (II), Fig. 4,
urinary bladder (II), Fig. 8
Sacrum, Table 1.
| 1. | Cauda equina | Fig. 4 |
| 2. | Coccyx | Fig. 2 |
| 3. | Epidural fat | Fig. 4 |
| 4. | Epidural veins | Fig. 3, Fig. 4 |
| 5. | Erector spinae muscle | Fig. 4 |
| 6. | Ilium | Fig. 3, Fig. 4 |
| 7. | Intervertebral disc | Fig. 2 |
| 8 | Intervertebral foramen | Fig. 1 |
| 9. | Lamina | Fig. 4 |
| 10. | Spinal nerve | Fig. 3, Fig. 4 |
| 11. | Sacroiliac joint | Fig. 1, Fig. 3, Fig. 4 |
| 12. | Spinous process | Fig. 1, Fig. 4 |
KJ
More resources To view high resolution images,
please register first.
Click
here
to register.
Already registered? Enter your e-mail in the window below.Re-registerFig.1
Radiograph, AP projection.
 | |  | |  |
Sacrum, Fig.1 | | Sacrum, Fig.2 | | Sacrum, Fig.3 |
 | |
Sacrum, Fig.4 | |