<Table> <Tr> <Th_colspan="2"> Semimembranosus muscle </Th> </Tr> <Tr> <Td_colspan="2"> Muscles of the gluteal and posterior femoral regions (semimembranosus labeled at bottom left) </Td> </Tr> <Tr> <Th_colspan="2"> Details </Th> </Tr> <Tr> <Th> Origin </Th> <Td> Ischial tuberosity </Td> </Tr> <Tr> <Th> Insertion </Th> <Td> Medial condyle of tibia </Td> </Tr> <Tr> <Th> Artery </Th> <Td> Profunda femoris and gluteal arteries </Td> </Tr> <Tr> <Th> Nerve </Th> <Td> Tibial part of sciatic nerve (L5, S1 and S2) </Td> </Tr> <Tr> <Th> Actions </Th> <Td> Extension of hip and flexion of knee </Td> </Tr> <Tr> <Th> Antagonist </Th> <Td> Quadriceps muscle and Tensor fasciae latae </Td> </Tr> <Tr> <Th_colspan="2"> Identifiers </Th> </Tr> <Tr> <Th> Latin </Th> <Td> Musculus semimembranosus </Td> </Tr> <Tr> <Th> TA </Th> <Td> A04. 7.02. 036 </Td> </Tr> <Tr> <Th> FMA </Th> <Td> 22438 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terms of muscle (edit on Wikidata) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Semimembranosus muscle </Th> </Tr>

What is the origin and insertion of the semimembranosus