Articular Cartilage
Where bone ends meet to form a joint, they are covered by hyaline cartilage. This cartilage appears bluish white and glistening in a normal healthy joint. Its primary function is to provide some cushioning and minimize friction between the bone ends.
What is the function and location of hyaline cartilage?
Hyaline cartilage is found in the synovial joints and assists the motion of joints. It is composed of chondrocytes and extracellular matrix. Chondrocytes plays a major role in the organization of extracellular matrix, which is responsible for the biomechanical properties of cartilage tissue.
What part of the body can you find hyaline cartilage?
Hyaline – most common, found in the ribs, nose, larynx, trachea. Is a precursor of bone. Fibro- is found in invertebral discs, joint capsules, ligaments. Elastic – is found in the external ear, epiglottis and larynx.
What is the difference between elastic and hyaline cartilage?
Hyaline cartilage is a translucent white type of cartilage present in areas of the body such as the joints. The main difference between this type of cartilage and elastic cartilage is that elastic cartilage contains many elastic fibers, whilst hyaline cartilage contains a matrix of mainly collagen fibers.
What makes hyaline cartilage unique?
Hyaline cartilage is high in collagen, a protein that is found not only in connective tissue but also in skin and bones, and helps hold the body together. Hyaline cartilage provides support and flexibility to different parts of the body.
What is hyaline made of?
Hyaline cartilage matrix is primarily made of type II collagen and chondroitin sulphate, both of which are also found in elastic cartilage. Hyaline cartilage exists on the sternal ends of the ribs, in the larynx, trachea, and bronchi, and on the articulating surfaces of bones.
What do chondrocytes do in hyaline cartilage?
Chondrocytes in the AC proliferate and secrete extracellular matrix to maintain and sustain the cartilage. The cells themselves are separated from each other by cartilage matrix [2]. They respond to outside stimuli and tissue damage, and are also responsible for degenerative conditions, such as osteoarthritis (OA).
What is the function of fibrocartilage?
Fibrocartilage provides the tough material of the intervertebral discs; the intraarticular cartilages of the knee, wrist and temporo-mandibular joints; the articular cartilage of the temporo-mandibular joint and of the joint between the clavicle and the sternum.
How is hyaline cartilage formed?
In an embryo, hyaline cartilage makes up the first skeleton, then modifies as the embryo develops. This is by a process known as endochondral ossification. Hyaline cartilage consists of fine type II collagen fibers, chondrocytes (matrix producing cells), and the extracellular matrix (or ground substance).
How can you tell the difference between hyaline cartilage and fibrocartilage?
The main difference between fibrocartilage and hyaline cartilage is that fibrocartilage is stiff and contains many collagen fibers whereas hyaline cartilage is a soft cartilage that contains fewer fibers.
How do you visually tell the difference between hyaline elastic and fibrocartilage?
Hyaline Cartilage | Elastic Cartilage |
---|---|
ü Appears translucent/grey in color/glossy | ü Has a yellow appearance |
ü Contains large amounts of collagen | ü Laden with elastic fibers |
What are 3 types of cartilage?
- Hyaline cartilage is the most widespread type and resembles glass. …
- Fibrous cartilage has many collagen fibers and is found in the intervertebral discs and pubic symphysis.
What replaces hyaline cartilage?
Endochondral ossification involves the replacement of hyaline cartilage with bony tissue. Most of the bones of the skeleton are formed in this manner. These bones are called endochondral bones. In this process, the future bones are first formed as hyaline cartilage models.
Is hyaline cartilage eosinophilic?
Elastic cartilage. … Observe that there are chondrocytes within lacunae just as in hyaline cartilage, but note the eosinophilic, fibrillar matrix due to the presence of elastic fibers. As with hyaline cartilage, fibrils of type II collagen are present, but they cannot be seen in the light microscope.
Is hyaline cartilage loose or dense?
There are three different types of cartilage, each with different characteristics. Hyaline cartilage is the most common type and is found in areas such as the trachea, ribs, and nose. Hyaline cartilage is flexible, elastic, and surrounded by a dense membrane called perichondrium.
What is the function of Isogenous groups?
Function. Isogenous groups differentiate into individual chondrocytes where they continue to produce and deposit extracellular matrix (ECM), lengthening the cartilage and increasing its diameter. This is termed interstitial growth and is one of only two ways cartilage can grow.
Where is hyaline found?
Hyaline cartilage is the most widespread and is the type that makes up the embryonic skeleton. It persists in human adults at the ends of bones in free-moving joints as articular cartilage, at the ends of the ribs, and in the nose, larynx, trachea, and bronchi.
How fibrocartilage gets its nourishment without Perichondrium?
Cartilage is devoid of blood vessels. Thus the nutrition of cells within the cartilage matrix is dependent on the diffusion of nutrients from blood capillaries in the perchondrium and/or adjacent tissues through the matrix. … Articular hyaline cartilage and fibrocartilage do not have a perichondrium.
Which cartilage is made up of white fibrous cartilage?
Fibrocartilage consists of a mixture of white fibrous tissue and cartilaginous tissue in various proportions. It owes its inflexibility and toughness to the former of these constituents, and its elasticity to the latter. It is the only type of cartilage that contains type I collagen in addition to the normal type II.
How is hyaline cartilage repaired?
It has been a commonly belief that hyaline cartilage tissue cannot spontaneously regenerate in vivo [1,2]. Therefore, the most progressive strategy to repair the articular cartilage defect is to fill an osteochondral defect with a tissue-engineered cartilage-like tissue or a cell-seeded scaffold material [3-6].
How is elastic cartilage similar to hyaline cartilage?
Elastic cartilage is histologically similar to hyaline cartilage but contains many yellow elastic fibers lying in a solid matrix. These fibers form bundles that appear dark under a microscope. They give elastic cartilage great flexibility so it can withstand repeated bending. Chondrocytes lie between the fibers.
What is the extracellular matrix of hyaline cartilage?
The extracellular matrix (ECM) of hyaline cartilage is homogeneous and glassy, rich in in type II collagen, proteoglycans such as aggrecan, and structural glycoproteins such as chondronectin.
What is elastic cartilage?
Elastic cartilage is a structural cartilaginous tissue for non-load-bearing body parts, such as ears, nose, and epiglottis (Hutmacher et al., 2003).
Which is the strongest cartilage?
Fibro-cartilage contains even more collagen fibers than cartilage. it is the most rigid sort of cartilage and may be found in intervertebral discs within the spine. It is also the strongest sort of cartilage.
What is the difference between hyaline cartilage and compact bone?
Bones | Cartilage |
---|---|
Bones are of two types: compact or spongy. | Cartilage is of three types: Hyaline cartilage, fibrocartilage and elastic cartilage. |
How can I restore my cartilage naturally?
- Legumes. For optimal joint function, it is important to beat inflammation wherever possible—inflammation is the primary source of collagen and, by extension, cartilage breakdown. …
- Oranges. …
- Pomegranates. …
- Green Tea. …
- Brown Rice. …
- Nuts. …
- Brussel Sprouts.
How do you fix fibrocartilage?
TFCC injuries can be repaired by open or arthroscopic methods. Arthroscopic TFCC repair: This is a minimally invasive procedure in which 2 to 3 small incisions of 5 mm each are made in the wrist. A slender viewing instrument called an arthroscope and other surgical instruments are inserted as needed.
Can I live without articular cartilage?
If there was no articular cartilage the bone surfaces would rapidly wear away due the friction that occurs when bone rubs against bone. Articular cartilage is self-lubricating because of its high fluid content which gives it the lowest coefficient of friction of any natural or man-made material.