What is the function of pedicle in vertebrae?

What is the function of pedicle in vertebrae?

Pedicles. Each vertebra has two cylinder-shaped projections (pedicles) of hard bone that stick out from the back part of the vertebral body, providing side protection for the spinal cord and nerves. The pedicles also serve as a bridge, joining the front and back parts of the vertebra.

Do lumbar vertebrae have lamina?

The laminae are broad, short, and strong. They form the posterior portion of the vertebral arch. In the upper lumbar region the lamina are taller than wide but in the lower lumbar vertebra the lamina are wider than tall.

What is the difference between lamina and pedicle?

The vertebral arch forms the posterior portion of each vertebra. The pedicles are anchored to the posterior side of the vertebral body. Each lamina forms part of the posterior roof of the vertebral arch. The large opening between the vertebral arch and body is the vertebral foramen, which contains the spinal cord.

What do the pedicle and lamina make up?

The vertebral arch is formed by pedicles and laminae.

What are the features of the lumbar vertebrae?

Distinguishing features of the lumbar vertebrae include a thick and stout vertebral body, a blunt, quadrilateral spinous process for the attachment of strong lumbar muscles, and articular processes that are oriented differently than those found on the other vertebrae.

Why is the lumbar vertebrae important?

The lumbar vertebrae consist of five individual cylindrical bones that form the spine in the lower back. These vertebrae carry all of the upper body’s weight while providing flexibility and movement to the trunk region. They also protect the delicate spinal cord and nerves within their vertebral canal.

What is your lamina?

The lamina is the flattened or arched part of the vertebral arch, forming the roof of the spinal canal; the posterior part of the spinal ring that covers the spinal cord or nerves.

Where are the pedicles and lamina located in the body?

The pedicle lies between the back of the vertebral body and the transverse process. There are two pedicles per vertebra, one on each side. The lamina is the part of the vertebra that connects the spinous process and the transverse process. There are two laminae, located on either side of the spinous process.

How are the vertebrae connected to the pedicle?

The vertebrae are connected to each other through facet joints and a network of ligaments. At the junction of the pedicle and lamina on the right and left sides, bony protrusions project upward and downward, called the superior and inferior articular process.

What is the structure and function of the lumbar vertebrae?

The function of the structures of the lumbar spine are to protect and support the spinal cord and spinal nerves. The spinal nerves pass through a large hole (foramen) in the center of each vertebrae, which when lined up is called the spinal canal.

Where are the lamina located in the spinal system?

There are two laminae, located on either side of the spinous process. The lamina is often the site of back surgery when you need to relieve the symptoms caused by pressure on the spinal nerve roots. This can happen in the case of spinal stenosis. One commonly given surgery is called a laminectomy, but there are others, as well. 8