How do articular cartilages differ from other cartilages in the body?
How do articular cartilages differ from other cartilages in the body?
A smooth resilient elastic tissue made of chondrocyte cells present in the ear, nose, ribcage, tracheal rings, and the ends of long bones present in a joint is known as cartilage. The flexibility and rigidity of cartilage lie between bone and muscle. No supply of blood vessels or nerves occurs in the cartilage. Hyaline, fibrous, and elastic cartilage are the three types of cartilage present in the body.
A type of hyaline cartilage present on the articular surfaces of bones inside the synovial joint's cavity is known as articular cartilage. It differs from the other cartilage in the chondrocyte and collagen fiber's arrangement. The extracellular matrix that contains collagen type II fiber of the articular cartilage is organized in zones that differ in the chondrocyte cell arrangement. The surface chondrocytes are flat, the chondrocytes in deep tissues resemble the ordinary ones. In contrast, those in the deepest layers are stacked in a column with the calcified matrix in the articular cartilage. It reflects response when tissue experiences a mechanical pressure. It lacks the connective tissue called perichondrium that envelops the cartilage present in most other cartilages. The articular cartilage contains type ii collagen fibers, which are thinner compared to other fibers.
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