Completar frases The circulatory systemVersión en línea An activity for a 6th grade of Primary Education. por Pachy Velázquez 1 body blood ventricles lungs pumps waste top atria bottom blood chest lungs chamber pumps body muscle oxygen nutrients The heart is a located in the . The heart sends around your body . The provides your body with the and it needs . It also carries away . The right side of your heart receives blood from the and it to the . The left side of the heart does the exact opposite : It receives blood from the and it out to the . The heart is made up of four different areas , and each of these areas is called a . There are two of them on each side of the heart . Two are on the and the other two are on the . The two on the top are called . They fill with the blood returning to the heart from the body and lungs . The two on the bottom are called the . Their job is to squirt out the blood to the body and lungs .