Have you ever wondered how your brain receives a message that makes us feelHunger las nothing to do with an empty stomach as most people believe.
Hunger begin when certain nutritive materials are missing in the blood. When the
blood vessels lack these materials, a message is sent to a part of the brain that is called the
hunger center. This hunger center works like a brake on the stomach and intestine, As
long as the biood has sufficient food, the hunger center slows up the action of the stomach
and intestine. When the food is missing from the blood, the hunger center makes the
stomach and intestine more active. That is why a hungry person often hears his stomach
rumbling
• What is the purpose of the text?
A. To describe a stomach
B. To explain why we get hungry
C. To explain the human digestion process
D. To tell about the brain
E. To inform of the body parts that influence hunger​