<Tr> <Th> FMA </Th> <Td> 67397 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> Tight junctions, also known as occluding junctions or zonulae occludentes (singular, zonula occludens), are the closely associated areas of two cells whose membranes join together forming a barrier virtually impermeable to fluid . It is a type of junctional complex present only in vertebrates . The corresponding junctions that occur in invertebrates are septate junctions . </P> <Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (September 2012) (Learn how and when to remove this template message) </Td> </Tr> </Table>

Where are tight junctions found in the human body