Why is territorial matrix more basophilic?
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.
What is a pericellular matrix?
The pericellular matrix (PCM) is a narrow tissue region surrounding chondrocytes in articular cartilage, which together with the enclosed cell(s) has been termed the “chondron.” While the function of this region is not fully understood, it is hypothesized to have important biological and biomechanical functions.
How is the matrix of elastic cartilage and fibrocartilage different from the matrix of hyaline cartilage?
Hyaline cartilage contains fibers made primarily of type II collagen only. Fibrocartilage contains type II collagen but also contains abundant type I collagen. Elastic cartilage contains type II collagen and elastic fibers.
Does elastic cartilage have Isogenous groups?
An isogenous group (lat. “equal origin”) is a cluster of up to eight chondrocytes found in hyaline and elastic cartilage.
What is the difference between hyaline elastic and fibrocartilage quizlet?
Elastic cartilage is also found comprising some of the cartilages of the larynx. Fibrocartilage is intermediate in structure between hyaline cartilage and dense regular connective tissue. It does not have much ground substance, instead the matrix is paced with dense collage fibers arranged in parallel bundles.
What is perichondrium made of?
Perichondrium is made of two layers: Outer fibrous layer. This dense membrane of connective tissue contains fibroblast cells that produce collagen. Inner chondrogenic layer.
What is the main difference between hyaline elastic and fibrocartilage?
Fibrocartilage is the strongest type of cartilage composed of numerous collagen fibres. In contrast, hyaline cartilage is the weakest type of cartilage composed of fewer collagen fibres. Thus, this is the key difference between fibrocartilage and hyaline cartilage.
What is the difference between fibrocartilage and elastic cartilage?
Fibrous cartilage has many collagen fibers and is found in the intervertebral discs and pubic symphysis. Elastic cartilage is springy, yellow, and elastic and is found in the internal support of the external ear and in the epiglottis.
What is the matrix of elastic cartilage?
In elastic cartilage, chondrocytes are organised into elastic fibers, which make up a threadlike network or matrix. This matrix is composed of glycosaminoglycans, proteoglycans and multiadhesive glycoproteins. It is combined with elastic lamellae, and type II collagen.
How does a Chondroblast differ from an chondrocyte?
The key difference between chondrocytes and chondroblasts is that chondroblasts are immature cartilage cells found near the perichondrium while chondrocytes are mature cartilage cells found embedded within the extracellular matrix.
Is aggrecan a proteoglycan?
Aggrecan is the major proteoglycan in the articular cartilage. This molecule is important in the proper functioning of articular cartilage because it provides a hydrated gel structure (via its interaction with hyaluronan and link protein) that endows the cartilage with load-bearing properties.
What is the difference between territorial and interterritorial matrix?
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. Slide 71 Hyaline cartilage, Gallocyanin and Azure A stain.
What is the territorial matrix of cartilage?
The territorial matrix is the tissue surrounding chondrocytes (cells which produce cartilage) in cartilage. Chondrocytes are inactive cartilage cells, so they don’t make cartilage components.
Why is the territorial matrix of chondrocytes basophilic?
Chondrocytes are inactive cartilage cells, so they don’t make cartilage components. 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.