Question

The cervical vertebrae are classified by the presence of
A. Odontoid process
B. Transverse process
C. Amphiplateus centrum
D. Opisthocoelous

Answer 1

Hint: The spine's cervical vertebrae consist of seven bony rings between the base of the skull and the thoracic vertebrae in the trunk, residing in the neck. The cervical vertebrae are the thinnest and most sensitive bones of the vertebrae of the spinal column.

Complete Answer:
- Two anatomically and functionally distinct parts make up the cervical spine. To achieve rotation, lateral flexion, flexion and extension of the head and neck, these two segments work together.It consists of 7 vertebrae.
- Highly specialised, the first 2, C1 and C2, are given unique names: atlas and axis, respectively. C3-C7, with a body, pedicles, laminae, spinous processes, and facet joints, are more classic vertebras.

Seven cervical vertebrae are there in the human body. They have three key distinguishing features:
1. Bifid spinal process-the spinous process bifurcates at its distal end.
2. C1 (no spinous process) and C7 (the spinous process is longer than C2-C6 and does not bifurcate) are exceptions to this.
3. In each transverse process, by which the vertebral arteries pass to the brain, transverse foramina-an opening.
4. Each of the transverse processes is penetrated by the foramen transversarium, which provides passage to the vertebral artery and vein as well as the plexus of sympathetic nerves in the upper six vertebrae.
5. Each method is composed of an anterior and a posterior section. Outside the foramen, these two parts are joined by a bar of bone which exhibits a deep sulcus for the passage of the corresponding spinal nerve on its upper surface.
6. In the thoracic region, the anterior portion is the homologue of the rib, and is therefore called the costal process or costal part. It emerges from the side of the body, is directed in front of the foramen laterally, and ends in the anterior tubercle, a tubercle.
7. The posterior portion, the true transverse process, springs behind the foramen from the vertebral arch and is directed forward and laterally; it ends with the posterior tubercle, a flattened vertical tubercle.

The correct Answer is option (B) Transverse process.

Note: The cervical spine acts to provide the head with mobility and stability when linking it to the relatively immobile thoracic spine. The left and right head rotating movement occurs almost exclusively at the atlanto-axial joint between the atlas and the axis. The movement is contributed by a small amount of rotation of the vertebral column itself.