What is the bone at the base of your spine called?
sacrum
The bottom of the spine is called the sacrum. It is made up of several vertebral bodies usually fused together as one. The remaining small bones or ossicles below the sacrum are also fused together and called the tailbone or coccyx.
Why do I have an extra bone in my back?
The extra bone is essentially just a harmless anomaly; sometimes it’s because one vertebra failed to fuse with another, but in other cases it’s unclear why the bone appeared. L6 vertebrae don’t grow overnight. If you have the condition, you’ve always had it.
What are the two bones in lower back called?
The vertebral column of the lower back includes the five lumbar vertebrae, the sacrum, and the coccyx.
What are the names of the bones in your back?
Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig. 2). Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.
What does it mean to have a 6th vertebrae?
This sixth lumbar vertebra is known as a transitional vertebra. Conversely the sacrum appears to have only four segments instead of its designated five segments. Lumbosacral transitional vertebrae consist of the process of the last lumbar vertebra fusing with the first sacral segment.
Where is iliac bone?
pelvis
Iliac Bone is the upper crest or “wings” on the pelvic girdle. The uppermost and widest of the three bones constituting either of the lateral halves of the pelvis. Iliac bone is commonly used for autogenous bone grafts in spine surgery.
Is a femur bone?
The femur is found in the thigh. It is the largest bone in the body and is the only bone in the upper leg. The femur is known as a long bone.
What is a spinal cord?
A column of nerve tissue that runs from the base of the skull down the center of the back. It is covered by three thin layers of protective tissue called membranes. The spinal cord and membranes are surrounded by the vertebrae (back bones). The spinal cord and the brain make up the central nervous system (CNS).