Final answer:
The medical term for pertaining to the spleen and pancreas is 'splenopancreatic'.
Step-by-step explanation:
The medical term for pertaining to the spleen and pancreas is 'splenopancreatic'. The pancreas is a gland that performs both exocrine functions, like secreting digestive enzymes, and endocrine functions, such as releasing insulin and glucagon into the blood to regulate blood glucose levels. The spleen acts as a blood filter and plays a role in immune responses to blood-borne pathogens.