| A | B |
|---|
| function of connective tissue | helps to maintain or transmit forces by providing various amounts of strength and elasticity, binds together the cells of the body in various tissue, supports the organs holding them in place, provides stability and shock absorption in joints, provides flexible links between bones in certain types of joints, transmits muscle forces |
| classification of connective tissue | have relatively few cells (fibroblasts) distributed within a large amount of non-cellular material called a matrix. each types of tissue has a different composition of matrix depending on function. tissue classified according to their function into ordinary and special connective tissue. |
| ordinary connective tissue | binds together the cells of the body in various tissue and provides mechanical links between muscle and bone |
| special connective tissue | include bone and cartilage |
| elastin | proteins (a long chain of amino acids). the molecules are randomly arranged in terms of shape, orientation, and attachment to each other. when undergoes tension, the molecules straighten and then stretched (resist tension loads). acts like an elastic material |
| collagen | are proteins. molecules are regularly running in the same overall direction and aligned parallel to each other. when subjected to tension in the direction of their orientation, the fibers straighten then stretch. the amount of extension is relatively small. like elastin act like an elastic material; however they break after being stretched by 10% of their resting length. much stiffer than elastin |
| ground substance | forms non-fibrous part of the matrix. is a viscous gel consisting of large carbohydrate molecules suspended in a large amount of water. water determines viscosity. sole purpose is to provide mechanical support |
| matrix | non-cellular component of connective tissue |
| elastin | protein molecule with high elasticity that form elastin fibers |
| collagen | protein molecule with low elasticity that form collagen fibers |
| ground substance (brief) | non-fibrous component of matrix |
| viscosity | resistance to fluid flow |
