What is the matrix composed of in elastic cartilage quizlet?

cartilage is a connective tissue consists of dense matrix of collagen fibers and elastic fibers embedded in a rubbery ground substance (hyaluronic acid, proteoglycans and small amount of several glycoproteins). The matrix is produced by cells called chondroblast, which become embedded in the matrix as chondrocytes.

What is the matrix of cartilage made up of?

The matrix of cartilage is made up of glycosaminoglycans, proteoglycans, collagen fibers and, sometimes, elastin. Because of its rigidity, cartilage often serves the purpose of holding tubes open in the body.

Where is the matrix in elastic cartilage?

The Extracellular Matrix of Elastic Cartilage

These components are produced by the chondroblasts at the inner edges of the perichondrium, and are located in an environment that is gel-like. Chondrocytes within the cartilage only make up to 2% of total tissue volume.

Which of the following is made up of 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).

What is cartilage matrix?

cartilage matrix the intercellular substance of cartilage consisting of cells and extracellular fibers embedded in an amorphous ground substance.

Is matrix of cartilage is composed of calcium and phosphorus?

The matrix of cartilage is composed of specialized cells called chondrocytes. … The biochemical compose the solid matrix of cartilage is proteins and sugar.

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.

Which protein occurs in the matrix of cartilage?

Collagen type II—Collagen type II is the major structural protein in cartilage ECM (∼85%) and the major collagen found in the growth plate during endochondral ossification [61]. It is primarily found in the matrix secreted by the reserve zone chondrocytes.

Are fibroblasts in elastic cartilage?

Cartilage. Cartilage is a specialized form of connective tissue produced by differentiated fibroblast-like cells called chondrocytes. It is characterized by a prominent extracellular matrix consisting of various proportions of connective tissue fibers embedded in a gel-like matrix.

How is Highland cartilage different from elastic cartilage or 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.

What are histological features?

Highlights. Histology is the microscopic study of tissues and cells used in understanding the pathogenesis and diagnosis of various diseases. Cells are the tiny living units that form the tissues, organs and structures within the body.

Why hyaline cartilage matrix is Basophilic?

Note that the cartilage matrix is relatively homogeneous and basophilic. This is due to the masking of the collagen fibers by the high concentration of the glycosaminoglycans in the ground substance. The matrix immediately surrounding the lacunae is more intensely basophilic.

What cell produces the cartilaginous matrix?

What cell produces the cartilaginous matrix? The mature cell in cartilage is a chondrocyte. It rests in a lacunae surrounded by matrix. A chondroblast is an immature cartilage cell which produces the cartilaginous matrix.

What is an 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).

What type of cartilage is articular cartilage?

Articular cartilage is hyaline cartilage and is 2 to 4 mm thick. Unlike most tissues, articular cartilage does not have blood vessels, nerves, or lymphatics. It is composed of a dense extracellular matrix (ECM) with a sparse distribution of highly specialized cells called chondrocytes.

Does cartilage have 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 collagen forms bundles of triple helices, which provide a scaffold for the deposition of calcium phosphate mineral particles.

Which cartilage is characterized by bundles of coarse collagenous fibers in the matrix?

Fibrocartilage
A plate of hyaline cartilage at the ends of bone allows continued growth until adulthood. Fibrocartilage is tough because it has thick bundles of collagen fibers dispersed through its matrix. The knee and jaw joints and the the intervertebral discs are examples of fibrocartilage.

What is the articular capsule composed of?

The articular capsule also consists of two layers: (1) the outer fibrous membrane that may contain ligaments and (2) the inner synovial membrane that secretes the lubricating, shock-absorbing, and joint-nourishing synovial fluid.

What is knee cartilage made of?

Cartilage is made up of special cells, called chondrocytes, that lay down a tissue made of a specialized protein and collagen fibers around themselves. This tissue, called cartilage, is incredibly important to the human body.

What is the diaphysis made of?

cortical bone
The diaphysis is the main or midsection (shaft) of a long bone. It is made up of cortical bone and usually contains bone marrow and adipose tissue (fat). It is a middle tubular part composed of compact bone which surrounds a central marrow cavity which contains red or yellow marrow.

What is capsule in cartilage?

The layer of matrix that forms the innermost portion of the wall of a lacuna enclosing a single cell or a group of cartilage cells.

Do ligaments contain elastic Fibres?

Some ligaments are rich in collagenous fibres, which are sturdy and inelastic, whereas others are rich in elastic fibres, which are quite tough even though they allow elastic movement. At joints, ligaments form a capsular sac that encloses the articulating bone ends and a lubricating membrane, the synovial membrane.