Coral Springs, FL. Online Offers. Coral Springs, officially chartered July 10, 1963, is a city in Broward County, Florida, United States, approximately 20 miles (32 km) northwest of Fort Lauderdale. As of the 2010 United States Census, the city had a population of 121,096.
tight juncÂ·tion. An intercellular junction between epithelial cells in which the outer leaflets of lateral cell membranes fuse to form a variable number of parallel interweaving strands that greatly reduce transepithelial permeability to macromolecules, solutes, and water through the paracellular route.
Graphic of junctions in animal cells. Tight junctions. Tight junctions block the flow of fluids between epithelial cells. For example, the cells that line the intestine are responsible for taking up nutrients from the gut. The nature of the material taken up must be controlled to block unwanted substances from entering our bodies. The control comes from the fact that materials must pass through receptors on the epithelial cell membranes. Tight junctions form a water tight seal and prevent material from passing between cells.