<Tr> <Td_colspan="2"> Human appendicular skeleton </Td> </Tr> <Tr> <Th_colspan="2"> Details </Th> </Tr> <Tr> <Th_colspan="2"> Identifiers </Th> </Tr> <Tr> <Th> Latin </Th> <Td> skeleton appendiculare </Td> </Tr>

Which of the following is not part of the appendicular skeleton