| Front | Back | 
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								Epithelium									 | 
								Provides barriers for organs from outside environment Covers the body surface & organs, forms inner lining of body cavities, & lines hollow organ. Always has a free surface, underside is basement membrane | 
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								Muscle									 | 
								Produce, force, & cause motion									 | 
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								Connective									 | 
								Holds other tissues together such as bone of blood									 | 
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								Nervous									 | 
								Forms brain, spinal cord, & cranial nerves 									 | 
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								Simple Squamous 									 | 
								Lines the air sacs of lungs where O2 & CO2 are exchanged Lines insides of blood, lymph vessels, & covers membranes that line body cavities | 
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								Simple Cuboidal									 | 
								Single layer of cube-shaped cells Lines follicles of thyroid gland, covers, ovaries, lines kidney tubules. Kidneys: tubular secretion/reabsorptionGlands: secretes glandular products | 
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								Simple Columnar									 | 
								Single layer of elongated cells, near basement membrane Cells can be ciliated or nonciliated Lines uterus and portions of digestive tract Absorption | 
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								Pseudostratified Columnar									 | 
								Lines passages of respiratory system									 | 
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								Stratified Squamous 									 | 
								Keratininization: covering of dry/thick protective material prvents H20 & wastes from escaping underlying tissues  Lines oral cavity, esophagus, vagina, and anal canal | 
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								Stratified Cuboidal									 | 
								Lines larger ducts of mammary glands, sweat glands, & salivary glands. Lining of developing ovarian follicles & seminiferrous tubules 									 | 
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								Stratified Columnar 									 | 
								Found in parts of male urethra & parts of pharynx 									 | 
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								Transition Epithelium 									 | 
								Specialized to change in response to increase tension. Lines urinary bladder, lines ureters, & part of urethra. Expendable lining, prevents contents of urinary tract from diffusing back into internal environment. 									 | 
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								Glandular Epithelium									 | 
								Composed of cells that are specialized to produce & secrete substances. Found in columnar or cuboidal. 									 | 
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								Exocrine Gland									 | 
								Glands that secrete their products into ducts that open onto surfaces (skin or lining of digestive tract) 									 | 
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								Endocrine Gland									 | 
								Glands that secrete their products into tissue fluid or blood 									 |