In mathematics, the Fibonacci numbers or Fibonacci series or Fibonacci sequence are the numbers in the following integer sequence: (sequence A000045 in OEIS) By definition, the first two numbers in the Fibonacci sequence are 0 and 1, and each subsequent number is the sum of the previous two.
Tight Junctions. Tight junctions are found predominantly in epithelial tissues, such as intestinal brush border. Water and other fluids must be prevented from leaking between adjacent cells, so that body fluids do not gradually seep across the intestinal lining.
zonula adherens - which contain actin filaments. macula adherens (desmosomes) which contain intermediate filaments. The zonula adherens junction lies below the tight junction (occluding junction). In the gap between the two cells, there is a protein called E-cadherin - a cell membrane glycoprotein.