Intervertebral disk
Intervertebral Disk
The Intervertebral Disk (pronounced: in-ter-ver-te-bral disk) is a crucial part of the human anatomy that plays a significant role in the spinal column.
Etymology
The term "Intervertebral Disk" is derived from the Latin words "inter" meaning between, "vertebra" meaning joint, and "disk" referring to a circular, flat object.
Definition
An Intervertebral Disk is a fibrocartilaginous pad that serves as a cushion between the vertebrae in the spine. It is composed of an outer layer, the annulus fibrosus, and an inner core, the nucleus pulposus.
Function
The primary function of the Intervertebral Disk is to absorb shock and provide flexibility to the spine. It also helps in facilitating movements such as bending and twisting.
Related Terms
- Vertebrae: The individual bones that stack to make the spine.
- Spinal Column: The structural central part of the vertebrate body to which the head and limbs are attached.
- Annulus Fibrosus: The tough outer layer of an intervertebral disk.
- Nucleus Pulposus: The soft, jelly-like substance in the middle of the intervertebral disk.
Disorders
Disorders related to the Intervertebral Disk include Disk Herniation, Disk Degeneration, and Spinal Stenosis. These conditions can cause pain and limit movement, often requiring medical intervention.
External links
- Medical encyclopedia article on Intervertebral disk
- Wikipedia's article - Intervertebral disk
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