In vertebrates the most common type of connective tissue is loose connective tissue. Most widely distributed connective tissue variety in the body looks cobwebby beansprouts contains elastic fibers collgen fibers reticular fibers fibroblasts macrophages mast cells some white blood cells.
04b Connective Tissue
Connective tissue proper includes loose connective tissue and dense connective tissue.
Anatomy connective tissue. Loose connective tissue is named so because of the weave and type of its constituent fibers. Both tissues have a variety of cell types and protein fibers suspended in a viscous ground substance. Highly vascularized fat that breaks down to provide heat to the blood.
Dense connective tissue is reinforced by bundles of fibers that provide tensile strength elasticity and protection. Regular irregular and elastic. Branching off the central canal at right angles are perforating canals.
These canals consist of blood vessels that branch off the central vessels. A type of loose connective tissue proper. Adipocytes account for most of volume.
Eachosteon consists of a central canal which contains blood vessels and nerves surrounded by concentric rings lamellae of hard matrix and collagen fibers. The reticular tissue is limited to certain sites in the body such as internal frameworks that can support lymph nodes spleen and bone marrow. Dense regular connective tissue drct all collagen fibers in the matrix run in the same direction separated by rows of fibroblasts parallel to the direction of the pull.
There are three major categories of dense connective tissue. Four types of connective tissue 2342 all develop from mesenchyme 3295 different degrees of blood flow 3457 extracellular matrix full of ground substance and fibers 3594. Ligaments and tendons are made of dense regular connective tissue.
Dense regular connective tissue fibers are parallel to each other enhancing tensile strength and resistance to stretching in the direction of the fiber orientations. This tissue resembles areolar connective tissue but the only fibers in its matrix are the reticular fibers which form a delicate network. It holds organs in place and attaches epithelial tissue to other underlying tissues.
Nearly all the fat in the body. Main component of ligaments tendons aeroneurosis and fascia. These fibers form an irregular network with spaces between the fibers.
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