the vertebral arch
The pedicles, laminae, and spinous processes form the vertebral arch of a vertebra. Together, they create a protective structure that surrounds the spinal cord and contributes to the overall stability and support of the vertebral column. The pedicles connect the vertebral body to the laminae, while the spinous processes extend posteriorly, providing attachment points for muscles and ligaments. This configuration allows for flexibility and movement while safeguarding the central nervous system.
The pedicles and laminae of a vertebra form the vertebral arch, which encases and protects the spinal cord. The pedicles are short, thick projections that extend backward from the vertebral body, while the laminae are flat plates that connect the pedicles to the spinous process. Together, they create an opening called the vertebral foramen, through which the spinal cord passes. This structure is essential for maintaining the integrity and function of the vertebral column.
Cervical vertebrae have a bifurcated spinous process.
C-1 (Atlas)
You are feeling the spinous process of your vertebrae.
Spinous process
In the cervical spine, the C2-C6 vertebrae generally have bifid spinous proceses.
the transverse process and the articular process also spinous process
spinous process
spinous process and transverse process
Reactive bone marrow is a polyclonal bone marrow response meaning that the bone marrow is overproducing one or more cell types as part of the immune response. Edema is swelling caused by the overproduction of cells. Pedicles are part of the vertebrae that make up the spine, the part which connects the body and spinous process. L means lumbar and bilaterally means both sides so it means that the reactive bone marrow edema is occurring in both pedicles of the vertebrae.
The first cervical vertebra (C1), also known as the atlas, does not have a body or a spinous process. It has a ring-like structure that articulates with the skull and the axis (C2 vertebra).