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Page 1: Multiple Types of Epithelia

Multiple Types of Epithelia

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Structure of the Intestinal Epithelial Cell

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Acidification of an Extracellular Medium

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Transport of Glucose from the Intestinal Lumen into the Blood

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ORAL REHYDRATION THERAPY

1) REQUIRES BOTH NaCl AND GLUCOSE; NEITHER ALONE WORKS

THE Na+/ GLUCOSE SYMPORT PROTEIN MUST TRANSPORT Na+AND GLUCOSE TOGETHER

2) TRANSPORT OF NaCl AND GLUCOSE ACROSS THE INTESTINAL EPITHELIUM CAUSES OSMOTIC FLOW OF WATER FROM THE INTESTINAL LUMEN INTO THE BLOOD, LEADING TO REHYDRATION

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Schematic overview of the types of molecules that bind cells to each other and to the extracellular matrix

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Major families of cell-adhesion molecules

(CAMs).

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Adhesion molecules in junctions involved in cell-cell adhesion

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Structure of the Intestinal Epithelial Cell

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Desmosomes

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Desmosomes

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Gap Junctions

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Gap Junctions

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Tight Junction in Thin Section

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Model of a Tight Junction Between Two Epithelial Cells

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Freeze Fracture Image of a Tight Junctionin the Plasma Membrane of One of the Two

Adjacent Epithelial Cells

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The structure of fibrous collagen

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Type IV collagen - a key component of the basal lamina

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Type IV collagen - a key component of the basal lamina

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Model of the basal lamina

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The association of the plasma membrane of skeletal muscle with the basal lamina

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Organization of the basal lamina in different tissues

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Structure of laminin, a large heterotrimeric multiadhesive matrix protein found in all basal laminae

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Three-dimensional structure of the type III repeat of fibronectin that contains the RGD

integrin-binding sequence

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Structure of the glycosaminoglycan Heparan sulfate

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Structure of the glycosaminoglycan Hyaluron (Hyaluronic Acid)

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The cell-surface proteoglycan syndecan-4

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Modulation of activity of fibroblast growth factor

(FGF) by heparan sulfate proteoglycans 

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Structure of the FGF - FGR Receptor Complex

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