What are the 2 types of processes found on vertebrae?
Spinous and Transverse Processes On each vertebra, there are two transverse processes and one spinous process. The two transverse processes are located on either side of the ring, while the spinous process is located in the middle. These processes provide sites to which back muscles and ligaments attach.
What are 3 types of processes of a typical vertebra?
The vertebral foramen is large and triangular. The transverse processes are long and narrow and three tubercles can be seen on them. These are a lateral cosiform process, a mammillary process and an accessory process.
What are the processes of the vertebrae?
The spinous process protrudes where the laminae of the vertebral arch join and provides the point of attachment for muscles and ligaments of the spine. Spinous processes are the ridges that can be felt through the skin along the back of the spine.
What are the names of the 4 processes in the vertebral column?
Arising from the vertebral arch are the transverse, spinous, superior articular, and inferior articular processes. The vertebral foramen provides for passage of the spinal cord. Each spinal nerve exits through an intervertebral foramen, located between adjacent vertebrae.
What are the 7 processes in typical vertebrae?
A typical vertebral arch has seven bony processes: one spinous process, two transverse processes, and four articular processes. Spinous and transverse processes: These processes work as levers and serve as attachment sites for back muscles.
What are the 3 types of vertebrae and how are they different?
The vertebral column can be divided into three segments: Cervical. Each of the three segments of the spine has a curve. The cervical spine and the lumbar curve both are convex anteriorly, while the thoracic spine curves the opposite way, convex posteriorly.
What are the 5 types of vertebrae?
As mentioned above, our vertebrae are numbered and divided into five regions: cervical, thoracic, lumbar, sacrum, and coccyx.
How do the vertebrae develop its spinous process?
The spinous process of a typical cervical vertebra is short and bifid posteriorly. It is bifid because it develops from two separate secondary centers of ossification. This morphology is unique to cervical spinous processes.
What are the 3 sections of the spine?
The spine has three normal curves: cervical, thoracic and lumbar. There are seven cervical vertebrae in the neck, 12 thoracic vertebrae in the torso and five lumbar vertebrae in the lower back.
What is the transverse process of the vertebrae?
Transverse process is a small bony projection off the right and left side of each vertebrae. The two transverse processes of each vertebrae function as the site of attachment for muscles and ligaments of the spine as well as the point of articulation of the ribs (in the thoracic spine).
How many processes does a vertebrae have?
seven processes
A typical vertebra will consist of a body, a vertebral arch, and seven processes (Figure 6.32). The body is the anterior portion of each vertebra and is the part that supports the body weight. Because of this, the vertebral bodies progressively increase in size and thickness going down the vertebral column.
Which vertebrae have forked spinous processes?
Also, the spinous processes of cervical vertebrae are forked, or bifid.
What are the processes that make up the vertebrae?
The vertebrae have seven processes that jut out from their central body, including the main spinous process, four articular processes, and two transverse processes. The spinous process serves as an attachment point for muscles. The transverse processes also serve as muscle and ligamentous attachment sites, including the intertransverse ligaments.
Where are the transverse processes located in the thoracic vertebrae?
Spinous processes – each vertebra has a single spinous process, centred posteriorly at the point of the arch. Transverse processes – each vertebra has two transverse processes, which extend laterally and posteriorly from the vertebral body. In the thoracic vertebrae, the transverse processes articulate with the ribs.
How are lumbar vertebrae different from other vertebral vertebrae?
They are structurally specialised to support the weight of the torso. Lumbar vertebrae have very large vertebral bodies, which are kidney-shaped. They lack the characteristic features of other vertebrae, with no transverse foramina, costal facets, or bifid spinous processes.
What is the function of the spinous process?
The spinous process serves as an attachment point for muscles. The transverse processes also serve as muscle and ligamentous attachment sites, including the intertransverse ligaments.