<Li> PS: vagus nerve </Li> <Li> S: celiac plexus </Li> <Li> right phrenic nerve </Li> <Tr> <Th> colon </Th> <Td> <Ul> <Li> PS: vagus nerves and pelvic splanchnic nerves </Li> <Li> S: lesser and least splanchnic nerves </Li> </Ul> </Td> <Td> <Ul> <Li> T10, T11, T12 (proximal colon) </Li> <Li> L1, L2, L3, (distal colon) </Li> </Ul> </Td> </Tr>

Which of the following effects is a characteristic of the parasympathetic nervous system