Fibrous Cartilage
• is a form of connective tissue transitional between dense connective
tissue and hyaline cartilage. Chondrocytes may lie singly or in pairs,
but most often they form short rows between dense bundles of
collagen fibres. In contrast to other cartilage types, collagen type I is
dominant in fibrous cartilage.
• is typically found in relation to joints (forming intra-articular lips, disks
and menisci) and is the main component of the intervertebral disks,
symphysis pubis.
• merges imperceptibly into the neighbouring tissues, typically
tendons or articular hyaline cartilage. It is difficult to define the
perichondrium because of the fibrous appearance of the cartilage
and the gradual transition to surrounding tissue types.
Fibrocartilage
Fibro Cartilage
NO PERICHONDRIUM Found: in between bones/joints
● appears as many chondrocytes embedded in many layers of collagen fibers.
● there are no real distinct layers of cells as found in Hyaline and Elastic Cartilage.
● GOOD INDICATOR: Will see near end of bone, lines of cartilage cells extending towards the middle of where the two bones meet.
skeletal system animation
very good and detailed video about skeletal system in our body. Skeletal system functions and advantages on our life.
cartilage repair
cartilage is very important factor.. cartilage has lots of forms.. and cartilage system is very important functions but also cartila repair mechanism is very important for all of us. cartilage system repairing.. Osteoarthritis (OA) is one of the ten most disabling diseases in the developed world and is set to become more of a financial burden on health services as average life expectancy increases. Cartilage defects affect patients of all age groups. Surgeons, teamdoctors, general practitioners and physiotherapists alike are expected to provide adequate care.
cartilage structure video
Elastic cartilage contains, in addition to collagen, fibers of the protein elastin. This makes it firm yet supple, giving support, for example, to the external ear and epiglottis.
Fibrocartilage is made up of tightly packed bundles of collagen fibers, making it resilient and able to withstand compression. Fibrocartilage lies, for example, between vertebrae.
Three Kinds of Cartilage video from youtube
types of bone cancer
Types of bone cancer
Mostly when someone with cancer in the bones this is called metastatic cancer. It can be seen in many types of advanced cancer such as breast cancer, prostate cancer and lung cancer. When these types of cancer in the bones are examined under the microscope, the tissue change observed. For example, if someone has lung cancer that has spread to bones, the cancer cells in bone are still and act as cells of lung cancer. They did not look or behave like cells from bone cancer, even if they are in the bones. Because these cells also act as cancer cells of lung cancer, they still need to be treated with drugs that are used for lung cancer. For more information on bone metastasis of cancer, please visit the American Cancer Society website
cartilage 3 types
Cartilage, unlike other types of connective tissue, has no blood vessels. It is tough but pliant because the ground substance between the cells contains combinations of proteins and sugars. Cartilage is described as hyaline, fibrous or elastic, depending on the density and type of fibers present in its composition. Hyaline, the most abundant type of cartilage, is clear and glassy, with few cells and fibers in the ground substance. Hyaline covers the ends of bones at the joints, and also forms the rings which keep the trachea open. Fibrocartilage is made up of tightly packed bundles of collagen fibers, making it resilient and able to withstand compression. Fibrocartilage lies, for example, between vertebrae. Elastic cartilage contains, in addition to collagen, fibers of the protein elastin. This makes it firm yet supple, giving support, for example, to the external ear and epiglottis.
fibrous cartilaginous tissue
fibrous cartilaginous tissue: intervertebral disc
it is characterized by:
* not possess perichondrium
* holds smaller chondrocytes
* there are few chondrocytes
* have plenty matrix rich in collagen fibers
Chondrocytes were found in their condroplasts.
cartilaginous tissues
Cartilaginous tissues: Hyaline is characterized by:
* perichondrium
* homogeneous matrix
* chondrocytes are prepared individually or in groups.
* the chondrocytes are of a size in between.
The perichondrium has two layers.
cartilages and cartilage structures
Cartilaginous is a kind of tissue which is hyaline, trachea characteristics.
The hyaline cartilage is characterized by:
* perichondrium
* Matrix structure
* Chondrocytes are prepared individually or in groups.
* size of chondrocytes
The perichondrium has two layers: fibrous layer (collagen fibers, fibroblasts) and condrogena layer which is contains condroblasts.
cartilage physiology histology
Building
Schematic example of a Chondrons
As Chondroblasten come cartilage cells, chondrocytes, and Chondroklasten before. As Chondroblasten ( "Knorpelbildner"), the precursor cells called chondrocytes. They come from mesenchymal stem cells and make the active form of cartilage cells, because they all components of cartilage matrix can synthesize. Once this synthesis function they have, they differentiate into the chondrocytes, the actual cartilage cells. The chondrocytes are smaller than the Chondroblasten, spherical shape, have a rounded nucleus and contain lots of water, fat and glycogen. Their number, location and density for each Knorpelart specific. Chondrocytes are still in the immature state divide, which is characteristic appearance of "isogenic groups" may lead. They arise when the dividing cells already surrounded by cartilage matrix and are thus no longer differentiate between soft can. The groups are isogenic chondrocyte complexes, where each complex from a single chondrocytes arose. The individual complexes seem from a cartilage capsule to be surrounded and cartilage in a cave (Lacuna) to lie, but only when the fixation arises and the originally received by the chondrocytes reflects place. That includes a Knorpelhof, who through his property basophils anfärbbar is clear (territory). The isogenic groups are usually arranged columnar. The isogenic group and their territory summarizes it as "Chondron" together. Once the chondrocytes are differentiated, they lose their ability to divide. Chondroklasten known as scavenger cells in turn, focusing on specialized cartilage. They are much larger and merger of several monocytes and thus arose mostly Multinucleated giant cells. They play the main role in the degradation of early cartilage bones model (chondrale ossification) to the bone or later, in this context, including the healing of fractures.
Formation of cartilage tissue and its growth
Formation of cartilage tissue and its growth
The process of cartilage formation, which is also called Chondrogenese will increase initially from the densely mesenchyma zusammengelegenen Chondroblasten. This eventually take on their function and it is a matrix, which is rich in Chondromukoprotein. At the same time Tropokollagen produces and Extrazellularraum than collagen deposition. Through the production of these substances move the Chondroblasten ever further apart. At the same time, they differentiate into chondrocytes, either individually in the matrix, or propagate by division and then as isogenic groups may be present. The growth of cartilage done so primarily by the size of the increase Interzellularsubstanz, which also known as interstitial growth which is just under the cartilage formation occurs. For further growth, or even in a limited framework for the regeneration of cartilage tissue is mainly the Anlagerungswachstum (appositionelles growth) responsible. This leads to the formation of cartilage tissue from the surface, namely through the cartilage skin. In its inner layer sit Chondroblasten that synthesize the matrix and are still mitotic can share.
Disease and damage to the cartilage
Disease and damage to the cartilage
When cartilage disorders, there is a deterioration of chondrocytes located between the matrix. There is talk of an unmasking of the cartilage. The surface is rough, which restricts the function of the affected joint, a developing osteoarthritis. Very often, the cartilage disease of the kneecap (patella Chondropathia) the relatively early, even in children, can lead to difficulties. It may be in the chest, on the border between the bony and cartilaginous rib, too bizarre calcifications come, they call the Chondrokalzinose.
Polychondritis (from "poly": Greek = much, "chondr": Greek chondros = cartilage and "ITIS" suffix for inflammatory diseases, in the English language Relapsing Polychondritis): The recurrent Polychondritis is an extremely rare disease with mostly Schubart, sometimes permanently persistent inflammation of the cartilage. Can be involved all the structures or institutions, which consist of cartilage or where cartilaginous elements are present.
The Chondrose is an expression of degenerative changes in the cartilage. When it comes slipped into a vortex Verschmälerung of the intermediate distance of one or more vertebral segments in comparison to the rest without Deckplattensklerosierung the vertebrae. The intermediate eddy amount of space decreases. For block vertebrae is the space between vertebrae repealed. Causally come congenital or acquired disorders (degenerative, inflammatory, operationally) in question. Chondrosen with the participation of the underlying bone is called osteochondrosis. Solve this piece of cartilage from the cartilage Association, will be designated as Osteochondrosis dissecans.
Cartilage structures can also be damaged. Such damage can be done by a variety of causes arise from an unfortunate traps or a sports accident (traumatic), previous knee injury (post traumatic) or wear with time revealed. The quiescence (immobilization) over time can also result in cartilage damage.
An injury to the cartilage, caused by a strain such as jogging, is often discussed but so far can not be demonstrated. Scientific studies show much more of a good adaptation of the human cartilage in chronic stress . For long distance runners shows a recovery of the cartilage structure a few minutes after the end of sporting activity. In recent decades have surgery to repair cartilage in place. The goal of articular cartilage repair treatment is to restore the surface of the hyaline articular cartilage.
cartilage tissue
Cartilage
Hyaline cartilage in Light picture
Cartilage tissue is both a fixed pressure as well as biegungselastisches, vascular loose supporting tissue, in the development of the plant also bony skeleton forms. It is cut and there as other binding and Stützgewebsarten from cells and the surrounding Interzellularsubstanz consisting of formed and unformed components.
Cartilages
Cartilage Free information center for cartilage structure and biology, histology for you. If wanna learn about cartilages , you need some search on google and wikipedia. following wikipedia info already presents to you. Thank you. Cartilages is a type of dense connective tissue. It is composed of collagen fibers and/or elastin fibers, and can supply smooth surfaces for the movement of articulating bones. Cartilage is found in many places in the body including the joints, the rib cage, the ear, the nose, the bronchial tubes and the intervertebral discs. There are three main types of cartilage: elastic, hyaline, and fibrocartilage. see more at wikipedia info.
Why is cartilage important in the human body? AS SUMMARY
The cartilage is a type of dense connective tissue.
It consists of collagen fibers and / or elastin fibres, and the so-called chondrocytes, all of a company gel earth as a substance called the matrix.
The cartilage is avasculaire (no blood vessels) and nutrients are distributed through the matrix. Cartilagine different functions, particularly by providing a framework in which deposits of bones and can be equipped with smooth surfaces available to monitor the movement of articulation of the bones.
The cartilage in many places in the body, including seals assembly, chest, ear, nose, bronchial tubes and spine.
There are essentially three types of cartilage: hyaline, elastic and fibrocartilage. There are three different types of cartilage, each with specific characteristics according to their function. Hyaline cartilage Hyaline cartilage is the richest type of cartilage.
Hyaline The name derives from the Greek word hyalos, glass effect. And 'the matrix or translucent material basic research. E 'avasculaire hyaline cartilage, primarily of type II collagen. Hyaline cartilage lining of the bones is located in the joints (or the articular cartilage, as a rule, Gristle) and is also inside the bones, as a center of ossification, or the growth of bones. In addition hyaline cartilage from most forms of embryonic skeleton.
Cartilagine articular cartilage is a specialization of hyaline cartilage left at the end of long bones and not perichondrium. Cartilagine elastic Cartilagine elastic (also known as yellow cartilage) is located in the auricle of the tubes and varied as the walls of hearing loss (eustachian) tubes and larynx, and particularly in the epiglottis. The cartilage is to open the tubes. Cartilagine elastic is similar hyaline cartilage elastic, but contains packages (elastin), in the matrix. This follows a rigid structure, which is still elastic.
Cartilagine fibrous Fibrose cartilage (also known as cartilage and white) is a special type of cartilage in the difficult support, or a great force, such as the vertebral column, the public and other symphyses, and on the page or the connection tendons, ligaments to the bone. Rarely is clear dividing line between the neighbours and fibrocartilage hyaline cartilage and connective tissue. The fibrocartilage found in the spinal column contains more collagen hyaline. In addition to type II collagen found in hyaline cartilage and elastic, fibrocartilage contains collagen type I, not on the form fibrés light under the microscope.
Fibrose cartilage seems to be missing, a perichondrium, because it can not be because of collagen type I. If hyaline cartilage at the end of long bones like the femur is damaged, is often replaced by fibrocartilage not reduce the weight of forces and
Fibrocartilage
Fibrocartilage is intermediate in character between hyaline cartilage and dense connective tissue.
1. Composition and organization. Fibrocartilage is characterized by abundant type I collagen fibers; at low magnification, it closely resembles dense connective tissue. The ground sub stance contains equal amounts of dermatan sulfate and chondroitin sulfate. The matrix immediately surrounding the chondrocytes resembles that of hyaline cartilage and contains some type II collagen. The chondrocytes are distributed in columnar isogenous groups between the densely packed type I collagen bundles. There is no distinguishable perichondrium.
2. Histogenesis and growth. At sites where strong mechanical stresses occur, fibrocartilage develops from dense regular connective tissue through the transformation of fibroblasts or fibroblast like precursors into chondrocytes. Fibrocartilage growth has not been closely examined.
3. Function and location. Fibrocartilage is always associated with dense connective tissue, and the border between the two is usually indistinct. Its combination of cartilaginous ground substance and dense collagen bundles allows fibrocartilage to resist deformation under great stress; it is important in attaching bone to bone and providing restricted mobility. Sites in humans include the annulus fibrosus of the intervertebral disks, the symphysis pubis, and certain bone-ligament junctions.
B. Elastic Cartilage:
ØElastic cartilage is yellowish when fresh. It is more Rexible than hyaline cartilage .
Ø1. Composition and organization. Elastic cartilage is structurally identical to hyaline cartilage except that it contains, in addition to type II collagen fibers, a dense network of branching and anastomosing elastic fibers. This network is densest at the core of the cartilage mass and when stained with elastic stains tee, Verhoeff's or Weigert's), may obscure the organization of the tissue. The chondrocytes characteristically occur in isogenous groups. A perichondrium surrounds the elastic cartilage mass.
Ø2. Histogenesis and growth, Elastic cartilage develops from a primitive connective tissue containing wavy bundles of fibrils that differ in protein composition from both elastin and collagen. Fibroblasts eventually secrete elastin, and the fiber bundles are transformed into branching elastic fibers by an unknown mechanism. The development of chondrocytes and production of the other matrix materials is the same as in hyaline cartilage. Further growth resembles that of hyaline cartilage. 3. Function and location. Elastic cartilage provides flexible support. It occurs alone and with hyaline cartilage; the two may grade into each other in a single cartilage mass. In humans, elastic cartilage is found in the auricle of the external ear, the walls of the external auditory canals and auditory tubes, the epiglonis, and the corniculate and cuneiform cartilages of the larynx.
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