Discs

Discs are round, flat, plate-like structures found between the vertebrae in the spine. They act as shock absorbers, allowing the spine to flex, bend, and twist. Discs consist of an outer layer called the annulus fibrosus and an inner layer called the nucleus pulposus.

Structure of Discs

The annulus fibrosus is the tough, flexible outer layer of a disc. It is made up of several layers of fibrocartilage. The annulus fibrosus encases the nucleus pulposus, the soft, jelly-like center of the disc.

The nucleus pulposus is the inner layer of a disc. It is made up of a gel-like substance that provides cushioning and support to the spine. The nucleus pulposus is responsible for the disc's ability to absorb shock.

Function of Discs

Discs play a crucial role in the functioning of the spine. They serve as shock absorbers, preventing the vertebrae from rubbing against each other. Discs also allow for flexibility and movement in the spine.

Disc Disorders

There are several disorders that can affect the discs, including disc herniation, disc degeneration, and disc bulge. These conditions can cause pain, numbness, and other symptoms.

Disc herniation occurs when the nucleus pulposus pushes out through a tear in the annulus fibrosus. This can put pressure on the spinal nerves, causing pain and other symptoms.

Disc degeneration is a condition in which the discs wear down over time. This can lead to a loss of disc height and can cause the vertebrae to rub against each other.

Disc bulge is a condition in which the disc extends beyond its normal boundary. This can put pressure on the spinal nerves, leading to pain and other symptoms.

Treatment of Disc Disorders

Treatment for disc disorders can include physical therapy, medication, and in some cases, surgery. The goal of treatment is to relieve symptoms and improve function.

See Also

• Spine
• Vertebrae
• Spinal cord

Discs Resources
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