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level: Classification of Epithelial Tissue

Questions and Answers List

level questions: Classification of Epithelial Tissue

Question	Answer
Thin and flat?	Squamous
Cube shape?	Cuboidal
Tall and slender, column shaped?	Columnar
1 Layer of cells?	Simple
2 or more layers of cells?	Stratified
Diffusion, control of permeability, secretion and reduction of friction?	Simple Squamous Epithelium
Lines the body cavities?	Mesothelium
Lines the interior of the heart and blood vessels?	Endothelium
Protection from mechanical forces and abrasion?	Stratified Squamous Epithelium
Impregnated with keratin protein for strength and water resistance and forms the outer layer of skin?	Keratinized
Lines the mouth, esophagus, and vagina?	Non-Keratinized
Secretion and absorption, found in glands, ducts, and other parts of the kidney?	Simple Cuboidal Epithelium
Protection, secretion and absorption, relatively rare tissue found in the ducts of mammary and sweat glands?	Stratified Cuboidal Epithelium
Secretion and absorption, found in the stomach, small intestine, and large intestine?	Simple Columnar Epithelium
Protection, Relatively rare tissue found in the pharynx, urethra, and anus?	Stratified Columnar Epithelium
Secretion, typically have cilia to move secretions found in the nasal cavity, trachea, and bronchi?	Pseudostratified Columnar Epithelium
Allows for stretching and recoiling, appearance changes as stretching occurs, and situated in regions of the urinary system?	Transitional Epithelium
These are a collection of epithelial cells that produce secretions?	Glands
Secretions are discharged into ducts and delivered to epithelial surfaces?	Exocrine Glands
These have no ducts, and they release hormones that enter the blood?	Endocrine Glands
These glands secret mucin, which mixes with water to form mucus?	Unicellular Glands
These are found scattered along the pseudostratified ciliated columnar epithelium of the respiratory tract?	Mucous Cells
These are found scatter along the Simple Columnar Epithelium of the digestive tract?	Goblet Cells
Single duct that does not divide on its way from the gland?	Simple Multicellular Gland
Duct divides on its way from the gland?	Compound Multicellular Gland
Blind pockets?	Alveolar or acinar
Produces thin, watery secretions containing enzymes?	Serous Glands
Secret mucins, which form thick mucus secretions?	Mucous Glands
Contain both serous and mucous gland cells and therefore produce a secretion that is intermediate in viscosity?	Mixed Exocrine Glands
Product released by the exocytosis of secretory vesicles and does not damage the cell an example would be sweat glands?	Merocrine Secretion
Product is released by the shedding of the cytoplasm at the apical surface and the cell is damaged, and will have to regenerate, an example would be mammary glands?	Apocrine Secretion
Released by cells bursting, kills the gland cells and gland cells are replaced by stem cells, and example would be sebaceous glands?	Holocrine Secretion