What is vertebral interspace?
The vertebral interspace is the non-bony compartment between two adjacent vertebral bodies that contains the intervertebral disc which includes the nucleus pulposus, annulus fibrosus, and two cartilagenous endplates. “Think of the segment as two bones and the space between,” says Pollock.
What is the lumbar vertebral body?
The lumbar spine is the lower back that begins below the last thoracic vertebra (T12) and ends at the top of the sacral spine, or sacrum (S1). Most people have 5 lumbar levels (L1-L5), although it is not unusual to have 6.
What part of the vertebrae is known as the Centrum?
central
The basic configuration of a vertebra varies; the large part is the body, and the central part is the centrum. The upper and lower surfaces of the vertebra body give attachment to the intervertebral discs….Vertebra.
| Vertebrae | |
|---|---|
| FMA | 9914 |
| Anatomical terms of bone |
What is a Foraminotomy surgery?
A foraminotomy is a surgical procedure. It enlarges the area around one of the bones in your spinal column. The surgery relieves pressure on compressed nerves. Your spinal column is made up of a chain of bones called vertebrae.
How many vertebral segments are there?
There are 31 segments, defined by 31 pairs of nerves exiting the cord. These nerves are divided into 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal nerve (Figure 3.2).
How do you count vertebral segments?
When counting vertebral segments, be mindful that a single interspace sits between two vertebral segments. For instance, the span C6-T2 contains four vertebral segments (C6, C7, T1, and T2) and three vertebral interspaces (C6/C7, C7/T1, and T1/T2).
How are the vertebrae of the lumbar spine connected?
The five vertebrae of the lumbar spine are connected in the back by facet joints, which allow for forward and backward extension, as well as twisting movements. The two lowest segments in the lumbar spine, L5-S1and L4-L5, carry the most weight and have the most movement, making the area prone to injury.
What is the function of the intervertebral space?
These processes interlock and form the movable joints of the spine. They also provide the surfaces necessary for the insertion of the back muscles that create the movement. The space between two vertebral bodies is called the intervertebral space, or interspace, and contains an intervertebral disc.
How many joints are there in the lumbar spine?
In the lumbar spine, three joints are located between each two adjacent vertebrae: one disc joint (intervertebral disc joint) and two paired (left and right) facet joints.
Where are the facet joints located in the lumbar spine?
In the lumbar spine, three joints are located between each two adjacent vertebrae: one disc joint (intervertebral disc joint) and two paired (left and right) facet joints. The disc joint is located anteriorly, and the facet joints are located posterolaterally (Fig. 7A).