What is interterritorial matrix in cartilage?
What is interterritorial matrix in cartilage?
The darker staining matrix immediately surrounding the capsule is called territorial matrix , while the matrix that occupies the majority of space between chondrocytes is interterritorial matrix .
Does cartilage have a mineralized matrix?
The underlying organic matrix of mineralized cartilage is mainly a mixture of types II and X collagen and glycosaminoglycans, such as chondroitin sulfate. The glycosaminoglycans are usually present as components of proteoglycans, where their long sugar chains are covalently attached to a protein core.
Does cartilage have a flexible matrix?
Cartilage is a flexible connective tissue that differs from bone in several ways; it is avascular and its microarchitecture is less organized than bone. Cartilage is not innervated and therefore relies on diffusion to obtain nutrients. This causes it to heal very slowly.
What cartilage has a glassy matrix?
Hyaline cartilage
Definition: a type of cartilage that is characteristically glossy and smooth in appearance, and with interstitial substance containing fine type II collagen fibres obscured by the ground substance.
What are cartilage destroying cells called?
Function. Chondroblasts appear to migrate to cartilage whenever chondrocytes are destroyed via mechanical force. Chondroblasts then secrete cartilage matrix around themselves in order to reform the lost cartilage tissue.
Why does territorial matrix stain darker?
The territorial matrix is basophilic (attracts basic compounds and dyes due to its anionic/acidic nature), because there is a higher concentration of proteoglycans, so it will color darker when it’s colored and viewed under a microscope.
Which is the biggest cartilage?
thyroid cartilage
The thyroid cartilage is the largest of the nine cartilages that make up the laryngeal skeleton, the cartilage structure in and around the trachea that contains the larynx.
Which is the strongest cartilage?
Fibro cartilage is found in special pads known as menisci and in the disks between your spinal bones, known as vertebrae. These pads are vital to reducing friction in joints, such as the knee. Doctors consider it the strongest of the three cartilage types. It has thick layers of strong collagen fibers.
Which cartilage type is best for weight bearing?
Articular Cartilage. Articular (hyaline) cartilage is normally a white to blue-white material with a smooth, moist surface. Cartilage thickness is greatest in the young and at sites of maximal weight bearing.
What cartilage is most effective at resisting compression?
Hyaline cartilage is highly resistant to compression. It does NOT always have a perichondrium (as in articular cartilage). Its matrix consists of type II collagen and hyaluronan, and it is NOT found in the pinna of the ear and epiglottis (elastic cartilage is found there).
Do Chondroblasts make collagen?
Chondroblasts secrete the extracellular matrix which is composed of various substances, including collagen, proteoglycans, glycoproteins, hyaluronic acid, water, and macromolecules. They do this by secreting the extracellular matrix at the peripheral cartilage surfaces.
What happens to the matrix in hyaline cartilage?
Understand what changes occur with aging in the matrix. These slides are good examples of mature hyaline cartilage with its abundant matrix and spaces, lacunae, occupied by cells, chrondocytes, which usually shrink extensively during fixation. The staining of the matrix is variable.
Is there A perichondrium in articular cartilage?
It does NOT always have a perichondrium (as in articular cartilage). Its matrix consists of type II collagen and hyaluronan, and it is NOT found in the pinna of the ear and epiglottis (elastic cartilage is found there). 2.
Where does appositional growth of cartilage take place?
Appositional growth – Chondrogenic cells surrounding the cartilage in the inner layer of the perichondrium differentiate into chondroblasts. Appositional growth occurs in both immature and mature cartilage. Growth occurs by two mechanisms Growth in the Epiphyseal Plate