What is the function of valves in the human heart?
a. Preventing the exit of blood from the heart to the arteries.
B. Prevent the return of blood from the ventricles to the atria and from the arteries to the ventricles.
C. Prevent the mixing of oxygen-rich blood with carbon dioxide-rich blood.
Dr. Regulation of blood pressure in the arteries.
a. Preventing the exit of blood from the heart to the arteries.
B. Prevent the return of blood from the ventricles to the atria and from the arteries to the ventricles.
C. Prevent the mixing of oxygen-rich blood with carbon dioxide-rich blood.
Dr. Regulation of blood pressure in the arteries.