Epithelial TissueGeneral Characteristics:- Found throughout the body, covers allbody surfaces both inside and out.- Main glandular tissue.- Attached to underlying connective tissueby noncellular nonliving basementmembrane.- Usually has no vascular tissue - bloodsupply- Cells reproduce rapidly (rapid healing).
It takes about 27days for theouter layer ofskin to shed andbe replaced;that works out to1.5 pounds ofskin cells peryear.Wheredoes allthe deadskin youshed go?
Epithelial tissue is named basedon its descriptionsimple = single layerstratified = multiple layerssquamous = flatcuboidal = squarecolumnar = column (rectangle)
Simple SquamousFunction: diffusion and filtration. Air sacs in lungs, walls of capillaries
Simple Cuboidal Function: Secretion and Absorption Found in kidneys tubules, ducts and covering the ovaries
Connective TissueGeneral Characteristics:-Most abundant tissue in your body, foundthroughout-Binds structures together-Provides support, protection, framework, fillsspace, stores fat, produces blood cells, fightsinfection, and helps repair tissue.-Composed of more scattered cells with abundantintercellular material matrix-Made up of a ground substance (fluid, semi-solid)and fibers-Most has a good blood supply