<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (May 2015) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th_colspan="2"> Juxtaglomerular apparatus </Th> </Tr> <Tr> <Td_colspan="2"> A renal corpuscle, shown in blue and pink . The juxtaglomerular apparatus is shown to the left and labelled D . </Td> </Tr> <Tr> <Th_colspan="2"> Identifiers </Th> </Tr> <Tr> <Th> MeSH </Th> <Td> D007606 </Td> </Tr> <Tr> <Th> FMA </Th> <Td> 83599 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Juxtaglomerular apparatus </Th> </Tr> <Tr> <Td_colspan="2"> A renal corpuscle, shown in blue and pink . The juxtaglomerular apparatus is shown to the left and labelled D . </Td> </Tr>

One component of the juxtaglomerular apparatus is which of the following