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Chp. 4 Tissues

Connective Tissues

QuestionAnswer
What is Connective Tissue ? Is found throughout the body; most abundant and widely distrubted in primary tissues.
What are the Four types of tissues of connective tissues? Connective tissues proper, cartilage, bone & blood.
What is Connective tissues function? Binding & support, Protection, Insulation, & Transporation.
List some characteristics of Connective Tissues. -Mesenchyme as their common tissue of origin -Varying degrees of vascularity -Nonliving extracellular matrix, consisting of ground substance & fibers.
List some Structural Elements of Connective tissues. -Ground substance are unstructed materials that fills the space between cells. -Fibers are collagen elastic or reticular. -Cells are Fibroblasts, Chondroblasts, Osteoblasts, & Hematopoietic Stem Cells {Blood Cells}.
List some Ground Substances. -Interstitial (tissue) fluid -Adhesion proteins are Fibronectin & Laminin -Proteoglycans are glycosaminogly cans {GAGs} -It functions as a molecular sieve through which nutrients diffuse between blood capillaries and cells.
List characteristics of Fibers. Collagen are tough, provides high tensile strength. Elastic is long, thin fiberes that allow for stretch. Recticular are branched, collagenous fibers that form delicate networks.
List charcteristics of Cells. Fibroblasts are connective tissue proper. Chondroblasts are cartilage. Osteoblasts is bone. Hematopoietics stem cells are blood. White blood cells, plasma cells, marcophages, & mast cells.
List the characteristic of Embryonic. Mesenchyme are embryonic connective tissue. They are gel-like ground substance with fibers and star shaped mesenchymal cells. It gives rise to all other connective tissues and are found in the embyro.
List the characteristics of Areolar Connective Tissue. {Loose) Gel-like matrix with all 3 connective tissue fibers. Fibroblasts, macrophages, mast cells & some white bloods cells. It wraps and cushions organs. It is widely distributed throughout the body.
List the characteristics of Adipose Connective. (loose) Matrix are similar to a reolar connective tissue with closely packed adipocytes. Reserves food stores, insulates against heat loss, & supports and protects. It is found under the skin, around kidneys, within abdomen, & in breasts.
More... Adipose Connective The Local fat deposits serve nutrient needs of highly active organs.
List the Reticular connective tissue. It has loose ground substance with reticular fibers. Recticular cells lie in a fiber network. It forms a soft internal skeleton or stroma, that supports other cell type. Found in lymph nodes, bone narrow & the spleen.
List the characteristics of Dense Regular. Parallel collagen fibers with a few elastic fibers. Major cell type is fibroblasts. It attaches muscles to bone or to other muscles and bone to bone. Founf in tendons, ligaments, & aponeuroses.
List the characteristics of Dense Irregular.
Cartilage
List the characteristics of Hyaline Cartilage. Amorphous, firm matrix woth imperceptible network of collagen fibers. Chondrocytes lie in lacunae. It supports, reinforces, cushions, & resists compressions. It forms the costal cartliage a
More about hyaline ... It forms the costal cartilage and is found in embryonic skeleton, the end of long bones, nose, trechea, & larynx.
List characteristics of Elastic Cartilage. It is similar to hyaline but wit more elastic fibers. It maintains shape & structure while allowing flexiblility. It supports the external ear {pinna} and the epiglottis.
List the charcteristics of Fibrocartilage. Matrix similar to hyaline cartilage but less firm with thick collagen fibers. It prvides tensile strength & absorbs compression shock. It is found in intervertebral dics, the public sympysis and in discs of knee joint.
Bone {osseous tissue} Hard, calcified matrix with collagen fibers found in bone. Osteocytes are found in lacunae & are well vascularized. It supports, protects, &provides levers for muscular action. Stores calcuim, minerals,& fat. Marrow inside bones is hematopoiesis.(si
Blood Red & white cells in a fluid matrix {plasma} It contained within blood vessels. It functions in the transport of respiratory gases nutrients and wastes.
Created by: 200277831