Sentence 1 = Dorsal
Sentence 2 = Cranial
Dorsal means the back side, I always remember it because I think of a dorsal fin on a dolphin and how it is on their back.
Also the cranial cavity is your brain area which leads to your spinal cord which is in the back side of the body.
Answer:
a healthy diet and exercise
The customer is probably having an allergic reaction to something on the seafood platter.
Epinephrine is the answer you're looking for. A more common and more used terms would be adrenaline.