<Table> <Tr> <Th_colspan="2"> Lymphatic system </Th> </Tr> <Tr> <Td_colspan="2"> Human lymphatic system </Td> </Tr> <Tr> <Th_colspan="2"> Details </Th> </Tr> <Tr> <Th_colspan="2"> Identifiers </Th> </Tr> <Tr> <Th> Latin </Th> <Td> systema lymphoideum </Td> </Tr> <Tr> <Th> MeSH </Th> <Td> D008208 </Td> </Tr> <Tr> <Th> TA </Th> <Td> A13. 0.00. 000 </Td> </Tr> <Tr> <Th> FMA </Th> <Td> 74594 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Lymphatic system </Th> </Tr> <Tr> <Td_colspan="2"> Human lymphatic system </Td> </Tr>

What are the primary and secondary lymphatic structures