Connective tissue disease refers to a group of disorders involving the protein-rich tissue that supports organs and other parts of the body. The density of these fibers and the presence or absence of certain chemicals make some connective tissues soft and rubbery and others hard and rigid. These disorders often involve the joints, muscles, and skin, but they can also involve other organs and organ systems, including the eyes, heart, lungs, kidneys, gastrointestinal tract, and blood vessels. The fibers contain a protein called the physical or functional supporting tissue of the animal body, a major constituent of which (in addition to various kinds of cells) is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins; it is derived from the mesenchyme, which in turn is derived mainly from mesoderm; the many kinds of connective tissue may be classified according to cell-matrix proportion (loose vs. dense), arrangement of fibers (regular dense vs. irregular dense), fiber type (collagenous, elastic), embedded cell type (adipose, lymphoid, hemopoietic), degree of differentiation (mesenchymal, mucous), location (subcutaneous, periosteal, perichondrial), appearance (areolar, granulation), or nature of matrix (cartilaginous, osseous, or, in the cases of blood and lymph, liquid). It develops from the mesoderm. Collagen is a protein found in the tendons, ligaments, skin, cornea, cartilage, bone and blood vessels.
It forms the supporting and connecting structures of the body.

Connective tissue: A material made up of fibers forming a framework and support structure for body tissues and organs. Hereditary disorders of connective tissue are a heterogeneous group of generalized single-gene-determined disorders that affect one or another of the primary elements of the connective tissues (collagen, elastin, or ground substance [glycosaminoglycans]).
Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Connective tissue consists mainly of long fibers embedded in noncellular matter, the ground substance. Cutis laxa is associated with defects in these fibers.Physical or functional supporting tissue of the animal body, a major constituent of which (in addition to various kinds of cells) is an extracellular matrix of ground substance, protein fibers, and structural glycoproteins; derived from the mesenchyme, which in turn is derived mainly from mesoderm. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!Learn a new word every day. The connective tissue is an animal tissue that is predominantly composed of extracellular components (such as fibers and intercellular substances). Connective tissue has comparatively few cells. Delivered to your inbox!No other rounds, however, formed the forever-and-ever That's because the scopes have a short depth of focus, leaving out critical structures like adipose cells, cholesterol crystals, and According to the Elhers-Danlos Society, Ehlers-Danlos syndromes are a group of Post the Definition of connective tissue to FacebookShare the Definition of connective tissue on Twitter

The types of fibers that form the connective tissues are collagenous fibers, elastic fiber s, and reticular fiber s.

Blood and lymph may be regarded as connective tissues, the ground substance of which is a liquid.

Characteristics of connective tissue: Connective tissue ranges from avascular to highly vascular. Connective tissue is found in between other tissues everywhere in the body, including the nervous system. The varieties of connective tissue are: areolar or loose; adipose; dense, regular or irregular, white fibrous; elastic; mucous; lymphoid tissue; cartilage; and bone. It forms the supporting and connecting structures of the body.The supporting or framework tissue of the animal body, formed of fibers and ground substance with more or less numerous cells of various kinds. Connective tissues are the major supporting tissue of the body. It holds organsin place and attaches epithelial tissue to other underlying tissues. All connective tissue is derived from mesoderm, the middle germ cell layer in the embryo.

Elastin is a stretchy protein that resembles a rubber band and is the major component of ligaments and skin. Loose connective tissue is named so because of the "weave" and type of its constituent fibers.

There are more than 200 disorders that affect the connective tissue.

The vascular supply varies: cartilage, none; fibrous, poor; adipose, good; and bone, abundant. Tissue arising chiefly from the embryonic mesoderm that is characterized by a highly vascular matrix and includes collagenous, elastic, and reticular fibers, adipose tissue, cartilage, and bone. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.https://medical-dictionary.thefreedictionary.com/connective+tissuea fibrous type of body tissue with varied functions; it supports and connects internal organs, forms bones and the walls of blood vessels, attaches muscles to bones, and replaces tissues of other types following injury. Blood may also be considered a connective tissue.