1. Multiple Types of Epithelia

2. Structure of the Intestinal Epithelial Cell

3. Acidification of an Extracellular Medium

4. Transport of Glucose from the Intestinal Lumen into the Blood

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

7. Major families of cell-adhesion molecules (CAMs).

8. Adhesion molecules in junctions involved in cell-cell adhesion

9. Structure of the Intestinal Epithelial Cell

10. Desmosomes

12. Gap Junctions

14. Tight Junction in Thin Section

15. Model of a Tight Junction Between Two Epithelial Cells

16. Freeze Fracture Image of a Tight Junction in the Plasma Membrane of One of the Two Adjacent Epithelial Cells

17. The structure of fibrous collagen

18. Type IV collagen - a key component of the basal lamina

20. Model of the basal lamina

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

22. Organization of the basal lamina in different tissues

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

25. Three-dimensional structure of the type III repeat of fibronectin that contains the RGD integrin-binding sequence

26. Structure of the glycosaminoglycan Heparan sulfate

27. Structure of the glycosaminoglycan Hyaluron (Hyaluronic Acid)

28. The cell-surface proteoglycan syndecan-4

29. Modulation of activity of fibroblast growth factor (FGF) by heparan sulfate proteoglycans

30. Structure of the FGF - FGR Receptor Complex