2020年12月3日 · Having sixth lumbar vertebrae in your spine are uncommon, but far from extraordinary. About 10% of the population has an extra bone in this region.

The sacrum is the triangle-shaped bone at the end of the spine between the lumbar spine and the tailbone. The sacral spine consists of five segments, S1 - S5, that together affect nerve communication to the lower portion of the body. It is important to understand that the spinal cord does not extend beyond the lumbar spine.

2023年4月13日 · The sacral vertebrae—also called the sacral spine—consists of five sacral vertebrae bones. These bones fuse together to form the sacrum, the shield-shaped bony structure located at the base of the lumbar vertebrae (the five cylindrical bones forming the spine of the lower bank) and connected to the pelvis.

2017年12月1日 · Why it matters: The information below provides a comprehensive overview of the human spine and spinal cord, detailing the structure and function of each vertebra from C1 to S5. This knowledge is important for understanding spinal cord injuries (SCIs) and their potential impacts on various body functions.

Pelvic incidence and lumbar lordosis are essential parameters for adult spinal deformity surgery 5; however, their values depend on recognizing transitional vertebrae 6-8. Stated differently, these values change depending on whether LSTV is regarded as L5 or S1 when measuring the pelvic incidence and on the vertebrae included in the lumbar ...

2023年12月5日 · In this article, we will explain the spine, its anatomy and its different functions by answering some of the following commonly asked questions: What does the spine do? What are the parts of the spine? What are the primary functions of the spine? What are the characteristics of a healthy spine? What does spine pain have to do with spinal anatomy?

2023年7月30日 · The vertebral column, or spine, is composed of 33 vertebrae. These vertebrae play an essential role in protecting the spinal cord and the spinal nerves. They serve as a support for the head, neck, thorax, abdomen, and pelvis while also allowing for flexibility and mobility through the presence of intervertebral discs and facet joints without ...

We identified a different LSTV type than type-IIIb LSTV and named it "S6 LSTV" (Fig. 3). Patients with S6 LSTV had 6 sacral vertebrae and 5 sacral foramina below the arcuate line of the ilium....

In two individuals with an S6, no coccyx sacralization and no aberration of spinal counts in other regions could be detected, which were classified as additional sacral elements (Figure 7h). Another morphological aspect that usually indicates a lumbosacral transitional vertebra is a second promontory within the sacrum.

lower part of the spine that is shaped like a triangle. The. letter "S" stands for "sacrum." So S1 refers to the 1st sacral. bone, S2 to the 2nd sacral bone, S3 to the 3rd sacral bone, and so on, until S5, which is the last sacral bone. S1 is at. the top and S5 is at the bottom, with the numbers in. between going down the body in numerical order.