How does the muscular system interact with the digestive system A. Food is moved through the small intestine
B. Oxygen is moved into and out of the lungs
C. Saliva production increases at the sight or smell of food
D. Nutrients are absorbed and transported to other body parts

b is the correct answer

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.