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14 Cards in this Set
- Front
- Back
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EPITHELIUM
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LAYERS OF CELLS THAT COVER INTERNAL OR EXTERNAL SURFACES
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GLANDS
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STRUCTURES THAT PRODUCE FLUID SECRETIONS
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FUNCTIONS OF EPITHELIAL TISSUE
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1. PROVIDE PHYSICAL PROTECTION
2. CONTROL PERMEABILITY 3.PROVIDE SENSATION 4. PRODUCE SPECIALIZED SECRETIONS |
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SIMPLE EPITHELIUM
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ONLY ONE LAYER OF CELLS COVERING THE BASAL LAMINA
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STRATIFIED EPITHELIUM
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SEVERAL LAYERS OF CELLS COVERING THE BASAL LAMINA
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SQUAMOUS EPITHELIUM
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(SQUAMA = PLATE OR SCALE)
THIN, FLAT, AND SOMEWHAT IRREGULAR IN SHAPE; RESEMBLE FRIED EGGS FROM THE SURFACE; DISC-SHAPED NUCLEUS OCCUPIES THE THICKEST PORTION OF EACH CELL. |
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SIMPLE SQUAMOUS EPITHELIUM
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LOCATIONS: MESOTHELIA LINING VENTRAL BODY CAVATIES; ENDOTHELIA LINING HEART AND BLOOD VESSELS; PORTIONS OF KIDNEY TUBULES; INNER LINING OF CORNEA; AVEOLI OF LUNGS
FUNCTIONS: REDUCES FRICTION, CONTROLS VESSEL PERMEABILITY; PREFORMS ABSORPTION AND SECRETION |
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STRATIFIED SQUAMOUS EPITHELIUM
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LOCATIONS: SURFACE OF SKIN; LINING OF MOUTH, THROAT, ESOPHAGUS, RECTUM, ANUS AND VAGINA
FUNCTIONS: PROVIDES PHYSICAL PROTECTION AGAINST ABRASION, PATHOGENS AND CHEMICAL ATTACK |
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SIMPLE CUBOIDAL EPITHELIUM
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LOCATIONS: GLANDS; DUCTS; PORTIONS OF KIDNEY TUBULES; THYROID GLAND
FUNCTIONS: LIMITED PROTECTION, SECRETION, ABSORPTION |
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STRATIFIED CUBOIDAL EPITHELIUM
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LOCATIONS: LINING OF SOME DUCTS (RARE)
FUNCTIONS: PROTECTION; SECRETION; ABSORPTION |
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TRANSITIONAL EPITHELIUM
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LOCATIONS: URINARY BLADDER; RENAL PELVIS; URETERS
FUNCTIONS: PERMITS EXPANSION AND RECOIL AFTER STRETCHING |
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SIMPLE COLUMNAR EPITHELIUM
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LOCATIONS: LINING OF STOMACH, INTESTINE, GALLBLADDER, UTERINE TUBES AND COLLECTING DUCTS OF KIDNEYS
FUNCTIONS: PROTECTION, SECRETION |
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PSEUDOSTRATIFIED CILIATED COLUMNAR EPITHELIUM
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LOCATIONS: LINING OF NASAL CAVITY, TRACHEA AND BRONCHI; PORTIONS OF MALE REPRODUCTIVE TRACT
FUNCTIONS: PROTECTION |
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STRATIFIED COLUMNAR EPITHELIUM
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LOCATIONS: SMALL AREAS OF THE PHARYNX, EPIGLOTTIS, ANUS, MAMMARY GLANDS, SALIVARY GLAND DUCTS AND URETHRA
FUNCTIONS: PROTECTION |
