HRMT 326 Lecture Notes - Lecture 3: Cytosol, Holocrine, Antibody

• School: Athabasca University
• Department: Human Resource Management
• Course: HRMT 326
• Professor: Dr .G

Document Summary

Is a combination of arrangement of cell layers and cell shape: arrangement of cells in layers. Simple epithelium: single layer of cells whose function is diffusion ,osmosis ,filtration. Cells that do not extend to the apical surface have cilia: other (goblet cells)secrete mucus. Stratified epithelium: 2 or more layer of cells that protect underlying tissue where there is wear and tear: cell shape: Squamous: think, which allow the rapid passage of substances through them. Cubical: shaped like cubes or hexagon, function in either secretion or absorption. Columnar: like column, protect underlying tissues , specialized for secretion and absorption. Transitional: change shape from squamous t cubical, organs like the bladder ( this allows it to stretch to hold urine) Epithelia tissues: covering and lining epithelium: simple squamous epithelium : flat cell resemble a tiled floor lines the cardio and lymph system ( knows as endothelium here endo=within and helium=covering).