The anterior articulating facets.
(That's where the joints are. What keeps them from coming apart is ligaments and muscles.)
The ligamentum flavum is a strong ligament found in the spinal column that connects adjacent vertebrae in the spine. It helps to support and protect the spinal cord and provides stability to the spine during movement. Over time, this ligament can thicken and contribute to conditions like spinal stenosis.
The backbone is actually a collection of spinal vertebrae, each connected to each other with a fibrous disk. On the top end, the spinal vertebrae are connected to the cervical (neck) vertebrae and then to the base of the skull. On the lower end the spinal vertebrae connect to the coccyx or tailbone which is essentially 5 fused spinal vertebrae and the central part of the pelvis (hip bone). The lower portion of the spine called the lumbar region does not connect to any additional bones. In the upper portion of the spine called the thoracic region each vertebrae also connects to two ribs. Other than connecting to additional bones, there are numerous muscles, tendons, and blood vessels that also connect to the spine. Other than the structural and limited movement role of the spine, it also serves as a vital protective role for the spinal cord which leads to all the peripheral nerves of the body.
The lumbar vertebrae in the lower back is typically five in number and unfused.
The five fused vertebrae with which the hip bones move are collectively known as the sacrum. The sacrum forms the posterior wall of the pelvis and connects the spine to the hip bones, providing stability and support for the body.
The three types of vertebrae are cervical (in the neck region), thoracic (in the chest region), and lumbar (in the lower back region). Each type of vertebra has unique characteristics that provide support and flexibility to the spine.
The ribs articulate with the thoracic vertebrae. The thoracic vertebrae also articulate with each other.
The vertebrae has two major functions: to provide support and to provide protection. The vertebrae helps to provide support by forming the core structure of the body's frame. If you think about it, the vertebrae connects everything (the limbs, head) to each other. The vertebrae also provides protection for the spinal nerves. These nerves are responsible for sending/receiving motor and sensory information to the brain. If these are damaged, paralysis can occur.
Without such separation you will not have mobility of the spine. Some times the adjoining vertebrae fuse and create the problem.
The only thing that connects the left and the right (1-10) is the sternum in the middle and the vertebrae in the back. 10-12 are only connected by the vertebrae between them.
The spine , tailbone and neck(:
So the vertebrae in your spine will not grind agaist each other.
Almost all the joints between vertebrae are movable. The joints between the cervical vertebrae and lumber vertebrae have fairly good movement. Between thoracic vertebrae only you have less movement. But then they do move on each other.
They are warm blooded.
The ligamentum flavum is a strong ligament found in the spinal column that connects adjacent vertebrae in the spine. It helps to support and protect the spinal cord and provides stability to the spine during movement. Over time, this ligament can thicken and contribute to conditions like spinal stenosis.
Between each vertebrae in the spinal column is an intervertebral disc, which acts as a cushion and shock absorber. The discs allow for flexibility and movement of the spine and help prevent the vertebrae from rubbing against each other.
The backbone is actually a collection of spinal vertebrae, each connected to each other with a fibrous disk. On the top end, the spinal vertebrae are connected to the cervical (neck) vertebrae and then to the base of the skull. On the lower end the spinal vertebrae connect to the coccyx or tailbone which is essentially 5 fused spinal vertebrae and the central part of the pelvis (hip bone). The lower portion of the spine called the lumbar region does not connect to any additional bones. In the upper portion of the spine called the thoracic region each vertebrae also connects to two ribs. Other than connecting to additional bones, there are numerous muscles, tendons, and blood vessels that also connect to the spine. Other than the structural and limited movement role of the spine, it also serves as a vital protective role for the spinal cord which leads to all the peripheral nerves of the body.
The lumbar vertebrae in the lower back is typically five in number and unfused.