Connective Tissue Quiz

what does connective tissue consist of? individual cells scattered within an extracellular matrix what is the extra-cellular matrix made of? various fibers suspended in a fluid known as ground substance what does ground substance consisnt of water flycosaminoglycansproteoglycansglycoproteins what helps Ground substance exist as either watery liquid or firm solid form chemical composition, amount of tension and temperature what does the thixotropy describe ability of ground substance to become more liquid as a movement and temp of the tissue increases what 3 fibers are suspended in the ground substance collagenreticularelastic what shape is collagen fiber? long , straight, wound like a rope what does the shape confer to the connective tissue? tensile strength and flexibility where are collagen fibers more abundant? tissues that require a strong resistance to force like ligaments and tendons what shape are reticular fribers? thin and branch into tiny nets capable of resisting force in multiple directions what can the reticular fibers do? help hold organs and support structures together what protein is in elastic fiber? elastin how does elastic fiber look? branched and wavy why are they in connective tissue? so that the tissue can return to original shape after being stratched what so firbroblasts do? produce and secrete proteins that make up the fibers in the extra-cellular matrix what is specific name for fibroblast in the bone? osteoblasts what is specific name for fibroblast in the cartilage? chondroblasts give an example of other individual cells found in connective tissue immune cells, like mast cells macrophages , adipocytes give 4 types of connective tissue loosedensefluidsupporting what does the loose connective tissue consist of? high levels of ground substance and fewer fibers adipose tissue and the superficial (just below the skin) what does the dense connective tissue consist of? thicker and stronger. more collagen fibers and less ground substance then loose connective tissue give example of dense connective tissue ligaments, tendons, joint capsules what does the fluid connective tissue consist of? watery because presence of watery (92%) plasma in exracellular matrix examples of fluid connective tissue blood and lymph what does the supporting connective tissue consist of? strong solid because additional calcium salts deposited in ground substance examples of supportive connective tissue cartilage and bone connective tissue stores energy in the form of? fat cells (adipose) give the names of the types of synovial joints ball and sockethingepivotcondyloidsaddle gliding what are cadavers? preserved human bodies used for scientific study list the 8 functions of connective tissue bindssupportsstrengthenscompartmentalizesprotects and insulatesserves as transport systemlocation of stored energy reservesmain source of immune responses what are proteoglycans made of? core protein and gags ( glycosaminoglycans) name the 4 types of polysaccharides found in ground substance _GAGs -glycosaminoglycans(attract water and make g.s more gel like_hyaluronic acid 9viscous and slippery (binds cells/lubricates joints_Chondroitin sulphate (support and adhesion in cartilage, bone, skin ,blood, vessels)_dermatan sulphate (in skin, tendon, blood vessels, heart valves_keratan sulphate (bone,cartilage and cornea of eye what are the types of proteins in ground substance proteoglycans and adhesion proteins(e.g fibronectin,binds to both collagen and ground substance and attaches cells to ground substance) give location of areolar loose tissue between structures give location of adipose loose tissue sub cutaneous fat and e.g around kidneys give location of reticular loose tissue blood vessels and smooth tissue give location of dense regular tissue ligaments and tendons and retinacula give location of dense irregular tissue fasciae e.g abdomen give location of dense elastic tissue some ligaments of vertebral column and lung tissue where would you find some smooth muscle cells bronchial walls or arteries what is surrounding smooth muscle cells? blue stained collagen separating one bundle of cells from its neighbour what does the retinacula do? retains tendons in position (dense regular)