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.
What is the difference between tight junctions and gap junctions? A gap junction is like a ' tunnel ' in between cells where messages and nutrients can be passed back and forth. A tight junction is the connection between two cells that are s â¦ trongly ' sown ' together with protein threads to help maintain tissue arrangment.