Connective Tissue

• cells • fibers • ground substance

collagen, elastic, reticular

-secrete proteins to make collagen -elastic & reticular

-contains fat (triglycerides)

-to engulf (phagocytosis) foreign bodies (bacteria)

-secrete heparin to prevent blood clots -secrete histamine to indicate allergy

-help to fight off infection/immune response and defense

-to become whatever cell your body needs (morph)

-to support cells by a scaffold

-made up of protein called elastin , provided for stretch ability

-made up of collagen fibers -great tensile strength (pull without tear)

-loose tissue -consists of collagen fibers, elastic fibers, and fibroblasts -found in most areas of the body -breast tissue -lies underneath epithelial -around organs

-loose tissue -filled with fat (triglycerides) -found in kidneys as padding -stomach, eyeballs, heart, cushion for joints

-loose tissue -made up of reticular fibers (made of collagen) -provides framework to hold organs together in place -liver and spleen

-dense tissue -made up of chondrocytes -lacuna (space surrounding a cell) -fetal skeleton, in joints at end of long bones, soft part of the nose

-dense tissue -made up of collagen fibers -provides a long framework for organ its in -example: vertebral disc acts as a cushion

-dense tissue -liquid connective tissue -transports oxygen and nutrients throughout the body VIA hemoglobin -consisting of white blood , red blood cells, plasma, platelets, cryoprecipiate (factor 8) -blood type info -AB is a universal donor, can receive any type, rare, A, B, O -O can give to anyone but only receive O

-can be compact or spongy -osteocyte (bone + cell) -osteons (compact bone) -osteoporosis (cant absorb Ca well)

-chondrocytes interspersed among elastic fibers -seen in the external part of ear -in epiglottis -provides stretchability

• collagen • elastic • reticular

cells and fibers