What type of cartilage is affected in a herniated disc?
Conclusion: Disc herniations often include hyaline cartilage pulled from the vertebral endplates. Cartilage fragments show little swelling or proteoglycan loss, and may be slow to resorb, increasing the risk of persisting sciatica.
Which type of connective tissue is found between the ribs and the sternum or supporting the trachea?
Hyaline cartilage is the most common type in the body. This cartilage type is found in the larynx, nose, ribs, and trachea. A very thin layer of cartilage is also present on bony surfaces, such as over joints, to cushion them. This hyaline cartilage is known as articular cartilage.
Where is yellow elastic cartilage found?
Elastic cartilage, fibroelastic cartilage or yellow fibrocartilage is a type of cartilage present in the pinnae (auricles) of the ear giving it shape, provides shape for the lateral region of the external auditory meatus, medial part of the auditory canal Eustachian tube, corniculate and cuneiform laryneal cartilages.
How can cartilage maintain its function even though it’s avascular?
How can cartilage maintain its function even though it is avascular? Cartilage has extensive blood vessels. The perichondrium prevents any exchange of nutrients and waste products. Cartilage is only the thickness of a few cell layers.
Are spinal discs cartilage?
The intervertebral disc is a cartilaginous structure that resembles articular cartilage in its biochemistry, but morphologically it is clearly different. It shows degenerative and ageing changes earlier than does any other connective tissue in the body.
What connective tissue is between ribs?
Cartilage. This is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, the rib cage, the ear, the nose, the elbow, the knee, the ankle, the bronchial tubes, and the intervertebral discs.
What is cartilage connective tissue?
Cartilage is a form of connective tissue in which the ground substance is abundant and of a firmly gelated consistency that endows this tissue with unusual rigidity and resistance to compression. The cells of cartilage, called chondrocytes, are isolated in small lacunae within the matrix.
What type of cartilage is between the vertebrae?
Fibrocartilage is a tough and inflexible form of cartilage found in the knee and between vertebrae.
Why is cartilage avascular?
Cartilage is avascular. Since there is no direct blood supply, chondrocytes receive nourishment via diffusion from the surrounding environment. The compressive forces that regularly act on cartilage also increase the diffusion of nutrients.
What is the purpose of cartilage in joints?
Articular cartilage is a highly specialized connective tissue of diarthrodial joints. Its principal function is to provide a smooth, lubricated surface for articulation and to facilitate the transmission of loads with a low frictional coefficient.