Hyaline cartilage is the glass-like (hyaline) but translucent cartilage found on many joint surfaces. This type of cartilage has a glassy appearance when fresh, hence its name, as hyalos is greek for glassy. The true ribs (ribs 1-7) attach to the sternum by costal cartilages.The flexible (hyaline) cartilage, makes the breathing process easier. This site includes histology quizzes, histology games, slides, mnemonics, histology puzzles and tons of information about histology. Hyaline cartilage is pearl-grey in color, with a firm consistency and has a considerable amount of collagen. ‘Cartilage function’ is one of the most challenging sections of histology. CARTILAGE. Elastic cartilage is histologically similar to hyaline cartilage but contains many yellow elastic fibers lying in a solid matrix. HISTOLOGY BIOL-4000 LECTURE NOTES #5B. See also dysgenesis. In H&E sections, elastic cartilage looks the same as hyaline cartilage, so it has to be specially stained to show the elastic fibres. The word hyaline means "glassy". bronchopulmonary dysplasia chronic lung disease of premature infants with hyaline membrane disease who have needed high concentrations of oxygen and assisted ventilation. bone [bōn] 1. the hard, rigid form of connective tissue constituting most of the skeleton of vertebrates, composed chiefly of calcium salts. How can you decide? Cartilage: Trachea. Cartilage has been subdivided into: hyaline; elastic; fibrocartilage; Fibrocartilage is a transition tissue that should be viewed as a blend between hyaline cartilage and dense fibrous connective tissue. Slide 13-Hyaline Cartilage. Hyaline cartilage is the glass-like (hyaline) but translucent cartilage found on many joint surfaces. Due to a high proportion of elastic fibres and lamellae, this type of cartilage is yellowish in colour in the fresh state. Hyaline cartilage is the most widespread and is the type that makes up the embryonic skeleton. Embedded in this are one or two round nuclei, having the usual intranuclear network. The "Adam's apple" is a nickname for part of the larynx formed by the thyroid cartilage. Is a precursor of bone. Questions are provided for the most important slides of this chapter. When a slice of hyaline cartilage is examined under the microscope, it is shown to consist of cells (chondrocytes) of a rounded or bluntly angular form, lying in groups of two or more in a granular, or almost homogeneous matrix. perichondrium - surface of cartilage. This is a section of an invertebral disc, which contains a layer of fibrocartilage. [2], The biochemical breakdown of the articular cartilage results in osteoarthritis – the most common type of joint disease. Growth and nourishment of cartilage: Unlike other connective tissues cartilage is avascular (like epithelia). Important for: support to softer tissues 16.02.2018 - Histology: Hyaline Cartilage P = perichondrium C = chondrocyte (in lacunae) M = Matrix Section of mature follicle in ovary, 100x Called also os. 9. histological features or microscopic features or microscopic anatomy 10. Register now, join the community for free access. The epiphyses are lined by a layer of articular cartilage, a specialized form of hyaline cartilage, which serves as protection against friction in the joints. epiglottis. Cartilage plays an important role in the life of animals and fish too. Histology of fibrocartilage Characteristics. The chondrocytes lie between the fibres. When arranged in groups of two or more, the chondrocytes have rounded, but generally straight outlines; where they are in contact with each other, and in the rest of their circumference, they are rounded. The cells are contained in cavities in the matrix, called cartilage lacunæ. Chapter 5 - Cartilage and Bone. Cartilage and bone: Hyaline cartilage Examples: Hyaline cartilage is found within the wall of the trachea and the walls of the bronchi of the lung. Hyaline cartilage, Fibrocartilage and Elastic cartilage are the three major types of cartilage in the human body. Hyaline Cartilage Hyaline cartilage is composed of type II collagen fibers and ground substance. The outside of the diaphysis is lined by periosteum, a fibrous external layer onto which muscles, ligaments, and tendons attach. Histology. This membrane contains vessels that provide the cartilage with nutrition through diffusion. Fresh hyaline cartilage has a translucent appearance, hence the term. Elastic cartilage The histological structure of the elastic cartilage is similar to that of the hyaline cartilage except: 1) cell nests are few. In the fetus, it serves as a temporary skeleton until it is replaced by bone. dysplasia [dis-pla´zhah] an abnormality of development; in pathology, alteration in size, shape, and organization of adult cells. Return to Cartilage and Bone Page. Articular cartilage is hyaline cartilage on the articular surfaces of bones,[3] and lies inside the joint cavity of synovial joints, bathed in synovial fluid produced by the synovial membrane, which lines the walls of the cavity. The After five weeks, histology showed that grids were filled with a hyaline-like neo-cartilage tissue, staining positive with Alcian blue for GAG and immunostaining for collagen type II (Fig. It has a perichondrium, and it is the weakest of the three types of cartilage. It is also most commonly found in the ribs, nose, larynx, and trachea. Hyaline cartilage is the most abundant type of cartilage. 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