Anatomy of the Spine
The spine is designed to give us stability, smooth movement, as well as provide protection for the delicate spinal cord.
It is made up of bony segments called vertebrae and fibrous tissue called intervertebral discs.
The spine can be divided into 4 parts: the upper one is the neck area, or the cervical spine, which consists of 7 vertebrae.
The next 12 vertebrae make up the chest area and the ribs are attached to it.
The 5 lumbar vertebrae are the largest of the vertebrae and support 2/3 of the body's weight.
The lowest area of the spine is the sacrum (scrum) and tailbone. The scrum is a sort of triangular plate consisting of 5 fused vertebral segments while four caudal segments complete the bony spine.
squad
A single link consists of two parts; The front part is called the body, in the shape of a cylinder, and is strong and stable. The back part of the vertebra is called the vertebral arch and is made up of many parts.
The two pedicles (pedicles) connect the vertebral arch to the anterior body.
The two laminae form the arch itself and two transverse lugs protrude like wings to help anchor the vertebral arch to the surrounding muscle.
The posterior lug creates a bulge at the apex of the laminae, and is the part of the spine that is felt directly under the skin.
for varieties
A pair of flat arched bones that form a component of the posterior arch of the vertebra.
spinal canal
This canal is created by joining the individual vertebral foramina one on top of the other, to form a canal. The purpose of the canal is to create a bony envelope from the head to the lower back through which the spinal cord and nerves pass.
intervertebral disc
The intervertebral disc sits between the bodies of the weight-bearing vertebrae, and functions as a shock absorber. The disc has fibrous outer rings called annulus with a watery jelly-filled core called nucleus.
Spinal cord
Through it the nervous system transmits the electrical signals between the brain and the body. It starts at the brain stem and is held within the spinal canal until it reaches the beginning of the lumbar vertebrae. At the level of vertebra-L1 (the first conditional vertebra) the spinal cord divides into groups of nerves that supply the lower body.
Fast joints
Joints on both sides of the lamina of the vertebra. These synovial joints give the spine its flexibility by moving the joints over each other.