The image to the right shows a defected cartilage. The cells of cartilage, called chondrocytes, are isolated in small lacunae within the matrix. Articular cartilage locations are found throughout the body. enthesis fibrocartilage cells) are similar to chondrocytes such that they possess a round to oval shape and are isolated within lacunae in the extracellular matrix. It should also be noted that the pattern of differentiation of cartilage occurs centrifugally. In the embryo, it provides support and is a precursor to bone.Embryonic cartilage either remains as cartilage or provides a substructure for endochondral ossification, meaning it also functions as a template for the rapid growth and development of the musculoskeletal system. Hyaline cartilage has fewer cells than elastic cartilage; there is more intercellular space. Cartilage is classified in three types: 1) elastic cartilage, 2) hyaline cartilage, and 3) fibrocartilage, which differ in the … An additional two cases showed only histologic evidence of bone or cartilage formation. Furthermore, these cells lack gap junctions among, and by extension there is little to no communication among the cells. The parietal layer contains a reservoir of prechondroblasts that will facilitate growth of the cartilage during extrauterine life. Fibrocartilage (histological slide) - Smart In Media, Chondroblasts (histological slide) - Smart In Media, Chondrocytes (histological slide) - Smart In Media, Fetal mesenchyme (histological slide) - Smart In Media, Isogenous group of chondrocytes (histological slide) - Smart In Media, Perichondrium (histological slide) - Smart In Media, Achilles tendon (histological slide) - Smart In Media, Collagen bundles (histological slide) - Smart In Media, Differences between the three main types of cartilage - Natasha Mutch, Palmer Classification of Triangular Fibrocartilage (TFCC) Abnormalities - Natasha Mutch. PGs. Location: Medulla oblongata Function: To transmit nerve impulses from one side of the body to the other. Intervertebral discs degeneration and herniation is multifactorial and is characterized by the loss of proteoglycans and hydration. In light of this fact, it should be noted that the relatively low quantity of type II – and the abundance of type I – collagen in fibrocartilage is a unique histological feature. Connective tissue - Connective tissue - Cartilage: Cartilage is a form of connective tissue in which the ground substance is abundant and of a firmly gelated consistency that endows this tissue with unusual rigidity and resistance to compression. These chondroblasts are irregular, flat cells that have numerous cytoplasmic projections extending into the extracellular matrix that it produces. The isolated cells retain their ability to replicate and subsequently there are clusters of chondrocytes within each lacuna known as isogenous cell aggregates. It is a white, densely arranged, opaque, tufted tissue with a mixture of both chondrocytes and fibroblasts. Three types of fibrous connective tissues include ligaments, tendons and the sclera, which is the white outer layer of the human eye. Their matrix is rubbery in nature. Depending on location, cartilage can have different ratios of collagen to proteoglycans. cartilage containing collagen fibres, e.g. Lorenzo Crumbie MBBS, BSc The cartilage contact along the motion path was analyzed, including cartilage contact location and the cartilage surface geometry at the contact area. Make sure you're using this technique to learn and memorize the ins and outs of fibrocartilage! The resulting precondrocytes are more tightly packed than their precursors. However, proteoglycans are relatively scarce in fibrocartilage and as such; the tissue appears relatively more acidophilic when compared to hyaline or elastic extracellular matrix. It is found in the intervertebral discs and pubic symphysis. In other words, cells at the centre of the tissue are usually older than those in the periphery. a specialized, fibrous connective tissue present in adults, and forming most of the temporary skeleton in the embryo, providing a model in which most of the bones develop, and constituting an important part of the organism's growth mechanism; the three most important types are hyaline cartilage, elastic cartilage, and fibrocartilage. Numerous chondrocytes are located within their lacunae and are spaced between the fibers. Cartilage provides both flexible support and cushioning for parts of the body such as the nose. Grounded on academic literature and research, validated by experts, and trusted by more than 1 million users. Disc herniation is a serious pathology that can cause long standing back and radiating lower limb pain. FIBROUS CONNECTIVE TISSUE. A. However, there are specific features that can be identified that facilitate discernment of the varying types of cartilage. In contrast, the fibrocartilage found in the glenoid or acetabular labra are more resistant to repetitious stress and provide strength and elasticity to the musculoskeletal attachment. The extracellular matrix of fibrocartilage is mainly made from type I collagen secreted by chondrocytes. Fibrocartilage consists of a mixture of white fibrous tissue and cartilaginous tissue in various proportions. Additionally, there is a reduction of the cytoplasm to nucleus ratio, the nuclei become oval and adjacent cells maintain their gap junction communication pathways. 7. Fibrocartilage is a transition tissue that should be viewed as a blend between hyaline cartilage and dense fibrous connective tissue. Function Connective tissue - Connective tissue - Cartilage: Cartilage is a form of connective tissue in which the ground substance is abundant and of a firmly gelated consistency that endows this tissue with unusual rigidity and resistance to compression. The gap filled by connective tissue may be narrow or wide. Ligaments: These are strong fibrous bands that join articular surfaces, controlling movement and providing stability. Fibrocartilage: The fibrocartilage occurs in the pubic symphysis, menisci of the stifle joint, and the annulus fibrosis of the intervertebral discs. Researchers are able to tell smooth muscle apart from striated or cardiac muscle based on the histological architecture and distinct biochemical markers found on each tissue. Loose fibrous C. Epithelial D. Hyaline cartilage E. Ligament 48. However, in other areas of the body, such as the synovial joint surfaces, tracheal rings or the laryngeal and epiglottis structures, cartilage persists throughout adulthood (only calcifying pathologically or in late adulthood). The former is known as the dermomyotome, while the latter is called the sclerotome. ( Sixth Edition ), 2015, yellow elastic cartilage ; which is then mineralised and replaced by.... 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