Module 3 (EPITHELIAL TISSUE) Flashcards
COMPOSED OF CLOSELY AGGREGATED POLYHEDRAL CELLS WITH VERY LITTLE EXTRACELLULAR SUBSTANCE. THESE CELLS HAVE STRONG ADHESION AND FORM CELLULAR SHEETS THAT COVER THE SURFACE OF THE BODY AND LINE ITS CAVITIES.
EPITHELIAL TISSUE
PRINCIPAL FUNCTIONS OF EPITHELIAL TISSUE
COVERING, LINING, RPOTECTING SURFACES (SKIN)
ABSORPTION (INTESTINE)
SECRETION (EPITHELIAL CELLS OF GLANDS/ GLANDULAR EPITHELIUM)
CONTRACTILITY (MYOEPITHELIAL CELLS)
LINE ALL EXTRENAL AND INTERNAL SURFACES OF THE BODY
EPITHELIAL CELLS
EVERYTHING THAT ENTERS OR LEAVES THE BODY MUST CROSS AN
EPITHELIAL SHEET.
SPECIFIC CELLS OF CERTAIN EPITHELIA ARE ALSO HIGHLY SPECIALIZED SENSORY CELLS, SUCH AS
TASTE BUDS OR THE OLFACTORY EPITHELIUM
CONSISTS OF CLOSELY PACKED CELLS WITH LITTLE EXTRACELLULAR MATERIAL BETWEEN ADJACENT CELLS
EPITHELIAL TISSUE
ARRANGED IN CONTINUOUS SHEETS *EITHER SINGLE OR MULTIPLE LAYER
EPITHELIAL TISSUE
WITH APICAL SURFACE WHICH IS EXPOSED TO A BODY CAVITY, LINING OF AN INTERNAL ORGAN AND BASAL SURFACE ATTACHED TO THE BASEMENT MEMBRANE
EPITHELIAL TISSUE
PLENTIFUL CELL JUNCTIONS WHICH SECURE ATTACHMENT AMONG CELLS
EPITHELIAL TISSUE
AVASCULAR
EPITHELIAL TISSUE
HAVE NERVE SUPPLY
EPITHELIAL TISSUE
ATTACHED FIRMLY TO ADJACENT CONNECTIVE TISSUE WHICH HOLDS IT IN POSITION AND PREVENT IT FROM TEARING
EPITHELIAL TISSUE
HIGH CAPACITY IF RENEWAL
EPITHELIAL TISSUE
DIVERSE IN ORIGIN
EPITHELIAL TISSUE
FORMED BY CELLS SPECIALIZED TO SECRETE. THE MOLECULES TO BE SECRETED ARE GENERALLY STORED IN THE CELLS IN SMALL-MEMBRANE BOUND VESICLES CALLED SECRETORY GRANULES
GLANDULAR EPITHELIA
