SPMD 1-17-12 - SPMD ANATOMY HISTOLOGY Biopsy Process of...

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SPMD ANATOMY HISTOLOGY Biopsy - Process of removing tissue samples for diagnostic purposes Autopsy - Throughout examination on a body after death to study changes caused by disease or to det. COD PRIMARY TYPES OF TISSUES 1. Epithelial 2. Connective 3. Muscle 4. Nervous DISTINCT SURFACES - Free (apical)-not attached to other cells o (face exterior, line opening of cavities) - Lateral-attached to other epithelial cells - Basal surface-attached to a “basement membrane” o (attached to basal lamina) o 2 layers create “glue” BASEMENT MEMBRANE - Helps epithelial tissue……… FUNCTIONS - Oral cavity - Skin prevents water loss - Lungs - Specialized secretes mucous, forms glands - In digestive, help absorb nutrients from food CLASSIFICATION - Classified by: o # of cell layers o Shape of cell at free surface 1. # a. Simple b. Stratified c. Pseudostratified 2. Shape a. Squamous b. Cuboidal c. Columnar d. Transitional Functional char.-cell layers/shapes - Simple: allows diffusion - Stratified: protection - Sq - Cub./col: may include goblet cells that produce and secrete mucous
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Funct/char- free surfaces - Can be smooth or folded o Smooth: reduces friction o Folds: …able to change shape -
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