Tight Junction
Tight junctions, or zonula occludens, are the closely associated areas of two cells whose membranes join together forming a virtually impermeable barrier to fluid. It is a type of junctional complex present only in vertebrates. The corresponding junctions that occur in invertebrates are septate junctions.
Read more about Tight Junction: Structure, Functions, Classification
Famous quotes containing the words tight and/or junction:
“Stiff springy jumps down the snowfields
Head held back, forefeet out,
Balls tight in a tough hair sack”
—Gary Snyder (b. 1930)
“In order to get to East Russet you take the Vermont Central as far as Twitchell’s Falls and change there for Torpid River Junction, where a spur line takes you right into Gormley. At Gormley you are met by a buckboard which takes you back to Torpid River Junction again.”
—Robert Benchley (1889–1945)