Herniated disc: Rupturing of the tissue that separates the vertebral bones of the spinal column.
The center of the disc, which is called the nucleus, is soft, springy and receives the shock of standing, walking, running, etc. The outer ring of the disc, which is called the annulus (Latin for ring), provides structure and strength to the disc. The annulus consists of a complex series of interwoven layers of fibrous tissue that hold the nucleus in place.
A herniated disc is often referred to as a slipped disc. This term came from the action of the nuclear tissue when it is forced from the center of the disc. The nuclear tissue located in the center of the disc can be placed under so much pressure that it can cause the annulus to rupture.
When the disc has herniated or ruptured, it may create pressure against one or more of the spinal nerves which can cause pain, weakness or numbness in the neck and arm. Other names for herniated discs are prolapsed and ruptured discs.
Picture of herniated disc between L4 and L5
Cross-section picture of herniated disc between L4 and L5
What is a herniated disc? The bones (vertebrae) that form the spine in your back are cushioned by small, spongy discs. When these discs are healthy, they ...
A herniated disc is a common back condition that leads to irritation of spinal nerves and can cause back and leg pain. Treatment of back pain caused by a ...
A lumbar herniated disc causes an irritation of the spinal nerve root in the lower back which prompts lower back pain or sciatica symptoms such as leg pain.
Herniated disk â€” Comprehensive overview covers causes and treatment of back pain from disk herniation.
Library > Science > Sci-Tech Dictionary ( â€²hÉ™rÂ·nÄ“â€²adÂ·É™d â€²disk ) ( medicine ) An intervertebral disk in which the pulpy center has pushed through the ...