<Tr> <Th> pancreatic head </Th> <Td> <Ul> <Li> PS: vagus nerves </Li> <Li> S: thoracic splanchnic nerves </Li> </Ul> </Td> <Td> T8, T9 </Td> </Tr> <Ul> <Li> PS: vagus nerves </Li> <Li> S: thoracic splanchnic nerves </Li> </Ul> <Li> PS: vagus nerves </Li> <Li> S: thoracic splanchnic nerves </Li>

When does the sympathetic nervous system take control