Intervertebral disk

Intervertebral disk is a fibrocartilaginous pad that serves as a cushion between the vertebrae of the spine. These disks are critical for the spine's flexibility and range of motion, and they also absorb shock.

Anatomy

The anatomy of an intervertebral disk consists of two parts: the annulus fibrosus and the nucleus pulposus. The annulus fibrosus is the tough, outer layer of the disk, which contains the softer, gel-like nucleus pulposus. The annulus fibrosus helps to distribute pressure evenly across the disk while the nucleus pulposus absorbs and mitigates the impact of the body's movements.

Function

The primary function of the intervertebral disk is to act as a shock absorber in the spine. It does this by distributing the force of impact from activities such as walking, running, and lifting. The disk also allows for movement and flexibility in the spine.

Conditions

There are several conditions that can affect the intervertebral disk, including disk herniation, disk degeneration, and spinal stenosis. These conditions can cause pain, numbness, and other symptoms.

Disk Herniation

Disk herniation occurs when the nucleus pulposus pushes out from the annulus fibrosus. This can put pressure on the spinal nerves, causing pain, numbness, or weakness in the limbs.

Disk Degeneration

Disk degeneration is a condition where the intervertebral disks lose their flexibility, elasticity, and shock-absorbing characteristics. This can lead to pain and limited mobility.

Spinal Stenosis

Spinal stenosis is a narrowing of the spaces within your spine, which can put pressure on the nerves that travel through the spine. This condition often occurs in the neck and lower back.

Treatment

Treatment for conditions affecting the intervertebral disk can range from conservative methods such as physical therapy and medication to more invasive procedures like surgery. The type of treatment will depend on the severity of the condition and the patient's overall health.

Intervertebral disk Resources
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