Intervertebral disc function & structure, major injures
The intervertebral disc function acts as a shock absorber between each vertebra of the spine, keeping the circles separated when there is an effect of activity. They also serve to protect the nerves that run in the middle of the spine and intervertebral discs.
intervertebral disc function
Between the various vertebrae in the cervical, thoracic and lumbar vertebrae (not in the sacrum and caudal bone) there are oval pads made of fibrous insert called the intervertebral discs.
The discs have a hard outer shell of the cartilage that provides support (fibrous rings) and a soft, jelly-like center that provides cushioning (nucleus pulposus).
Intervertebral disc function have the following roles:
They provide cushioning of the vertebrae and reduce the stress caused by the impact. Keeping the vertebrae separated from each other, they act as a kind of shock absorber for the spine.
They help to protect the nerves that run along the spine and between the vertebrae.
They increase the flexibility of the spine and allow us to bend at the waist without pushing the vertebrae towards each other.
Intervertebral discs are susceptible to many injuries. Most often it is called <b> disk hernia </ b> (a.k.a., bulging disc or slipped disk). Convex discs usually appear later in life. When discs age, they begin to break down, and when someone exerts excessive pressure on them, eg. Lifting something heavy around the waist instead of on the legs, they can break, break, and the gelatinous medium leaks. The jelly can irritate the surrounding nerves and cause their inflammation. This inflammation can put pressure on the nerves, causing back pain. The disc herniation diagnoses in several ways, including palpitations (spinal sensation) or X-rays and MRI imaging. Treatment of disc herniation as simple as resting and allowing healing, taking anti-inflammatory medications to reduce swelling, and in some extreme cases, surgery performed to repair the damage.
Intervertebral disks consist of an outer fibrous ring, an intervertebral fibrous ring that surrounds the inner, gel-like center, the nucleus pulposus. The fibrous core consists of several layers (plaques) of fibrous-cartilage composed of both collagen type I and types II. Type I concentrates towards the edge of the ring, where it provides more strength. Stiff lamina can withstand compressive forces. Fibrous intervertebral discs contain the crush nucleus, which helps to evenly distribute the pressure on the disc. This prevents the formation of stress concentrations that could damage the underlying vertebrae or their end plates. The nucleus pulp contains loose fibers suspended in a mucoprotein gel. The disk kernel acts as a shock absorber, absorbing the effects of body activity and separating two vertebrae. It is a remnant of a notochord.
There is one plate between each pair of vertebrae, with the exception of the first cervical segment, the atlas. Atlas is a ring around a roughly conical axis extension (second cervical segment). The axis acts as a pole around which the atlas can rotate, allowing the neck to rotate. There are 23 discs in the human spine: 6 in the neck (cervical region), 12 in the middle ridge (thoracic region) and 5 in the lower back (lumbar region). For example, the circle between the fifth and sixth cervical vertebrae is referred to as “C5-6