This sounds like a UTI, and i would prescribe a probiotic for a yeast infection, not a nasal spray considering nothing is wrong with his sinuses.
Answer:
CCK stimulates pancreatic secretion through hormonal and neuronal pathways. CCK is released from I cells of the small intestine and diffuses into the blood stream where it is carried to the pancreas.
The blood vessel is the tube that carry’s blood to heart