Anatomy and PhysiologyTissues are defines as:A group of cells that share thesame embryonic origin in thestages of human development.
Anatomy and PhysiologyTissues are:a group of cells that all perform thesame function for the same intendedoutcome.A group of cells that share the samegeneral structure and composition.
Anatomy and PhysiologyThere are 4 basic types of tissues:Epithelial tissueConnective tissueMuscle tissueNervous tissue
Anatomy and PhysiologyEpithelial tissueLocation : Think of the epithelium, the outercovering or lining of structures and organs.Epithelial tissue is located on the covers of thebody’s surface.Epithelial tissue lines the inner and outersurfaces of hollow organs, body cavities andglandular ducts.
Anatomy and PhysiologyEpithelial tissueFunctions:Contains special cells that trigger the bodyto respond to internal and external stimuli.Serves as a protective surface againsttrauma and other toxins and chemicals.
Anatomy and PhysiologyEpithelial tissueFunctions:Serves as a selective barrier for the transferof substances in and out of the bodyActs as a secretory surface for the excretionof substances out of the body.
Anatomy and PhysiologyEpithelial TissueStructure: recall these cells are found on theouter surfaces.The outer most layer of the cell is the apicalsurface.
Anatomy and PhysiologyEpithelial tissueThe basal surface is the inner/ deepestlayer.The lateral surfaces make up the sidesbetween the cells.
Anatomy and PhysiologyEpithelial tissueThe basement membrane is the deepestlayer that serves as a foundation for themore superficial cells.The basement membrane separates twodifferent tissue types.
Anatomy and PhysiologyEpithelial tissue overview:Epithelial tissue are sheets of cells arrangedin either single or multiple layers.