CELL SIGNALING MECHANISMS An understanding of the molecular aspects of cell signaling is clinically relevant to uncover potential targets of novel therapeutics for the treatment of metabolic dysfunctions and diseases. Signaling molecules can transmit information by acting as ligands ,…
EPITHELIAL GLANDS Types of epithelial glands ( 2-1 ) Most glands develop as an epithelial downgrowth extending into the underlying connective tissue. Exocrine glands remain connected to the surface of the epithelium by an excretory duct that transports the secretory…
CLASSIFICATION OF EPITHELIA ( 1-1 to 1-4 ) The epithelium is a tightly cohesive sheet of cells that covers or lines body surfaces and forms the functional units of secretory glands . The main characteristics of epithelia are summarized in…