The cells, called chondrocytes mature cartilage cells , make the matrix and fibers of the tissue. A cartilage with few collagen and elastic fibers is hyaline cartilage. The lacunae are randomly scattered throughout the tissue and the matrix takes on a milky or scrubbed appearance with routine stains.
Sharks have cartilaginous skeletons, as does nearly the entire human skeleton during some pre-birth developmental stages. A remnant of this cartilage persists in the outer portion of the human nose. Hyaline cartilage is also found at the ends of long bones, reducing friction and cushioning the articulations of these bones.
Elastic cartilage has a large amount of elastic fibers, giving it tremendous flexibility. The ears of most vertebrate animals contain this cartilage, as do portions of the larynx, or voice box. In contrast, fibrocartilage contains a large amount of collagen fibers, giving the tissue tremendous strength.
Fibrocartilage comprises the intervertebral discs in vertebrate animals, which must withstand a tremendous amount of stress. Cartilage can also transform from one type to another. For example, hyaline cartilage found in movable joints, such as the knee and shoulder, often becomes damaged as a result of age or trauma. Learning Objectives Distinguish between the different types of connective tissue.
Key Points Fibroblasts are cells that generate any connective tissue that the body needs, as they can move throughout the body and can undergo mitosis to create new tissues. Protein fibers run throughout connective tissue, providing stability and support; they can be either collagen, elastic, or reticular fibers. Loose connective tissue is not particularly tough, but surrounds blood vessels and provides support to internal organs.
Fibrous connective tissue, which is composed of parallel bundles of collagen fibers, is found in the dermis, tendons, and ligaments. Hyaline cartilage forms the skeleton of the embryo before it is transformed into bone; it is found in the adult body at the tip of the nose and around the ends of the long bones, where it prevents friction at the joints. Try to identify the cells and fibres.
This type of tissue contains many cells, a loose arrangement of fibres, and moderately viscous fluid matrix. This is an example of dense irregular connective tissue. It is the layer of skin underneath the epidermis, called the dermis. It contains collagen fibres and fibroblasts. Also at the top of the picture not labelled you can see a small capillary - can you find it?
This type of tissue contains a dense woven network of collagenous and some elastic fibres in a viscous matrix. It is found in joint capsules, in the connective tissue that envelops muscles muscle fascia , and it forms dermis of skin. It is impact resistant. Look at this image and make sure you can recognise loose and dense connective tissue.
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