The human heart consist of four valves. One of these is the mitral valve which connects the left atrium to the left ventricle. During diastole, it opens to allow blood from the left atrium to flow to the left ventricle. But during ventricular systole, it closes to prevent backflow of blood back to the left atrium.
Answer:
Family history of obesity
Explanation:
quizlet
Answer:
We can get calories from many different things by eating.
Explanation:
A lot of people dally would eat cereal,candy,and we can also get calories from our coffee.
Proteins play an important role in maintaining all these things, proteins are necessary for the development and repair of bones or muscles,skin and blood.<span />
