Explain the flow of blood in heart.
Both oxygen and carbon dioxide have to
be transported by the blood, therefore, the heart
has different chambers to prevent the
oxygen-rich blood from mixing with the
blood that contains carbon dioxide. The
carbon dioxide-rich blood has to reach
the lungs for the carbon dioxide to be
removed, and the oxygenated blood from
the lungs have to be brought back to the
heart. This oxygen-rich blood is then
pumped to the rest of the body.
Oxygen-rich blood from
the lungs comes to the left atrium. The left atrium relaxes
when it is collecting this blood. It then contracts, while the next chamber,
the left ventricle, relaxes so that the blood is transferred to it. When the left ventricle contracts, the blood is pumped out to
the body.
Deoxygenated blood comes from the body to the right atrium, as it relaxes. As the right atrium
contracts, the corresponding lower chamber, the right ventricle, dilates.
This transfers blood to the right ventricle, which in turn pumps it to the
lungs for oxygenation.
Both oxygen and carbon dioxide have to be transported by the blood, therefore, the heart has different chambers to prevent the oxygen-rich blood from mixing with the blood that contains carbon dioxide. The carbon dioxide-rich blood has to reach the lungs for the carbon dioxide to be removed, and the oxygenated blood from the lungs have to be brought back to the heart. This oxygen-rich blood is then pumped to the rest of the body.
Oxygen-rich blood from the lungs comes to the left atrium. The left atrium relaxes when it is collecting this blood. It then contracts, while the next chamber, the left ventricle, relaxes so that the blood is transferred to it. When the left ventricle contracts, the blood is pumped out to the body.
Deoxygenated blood comes from the body to the right atrium, as it relaxes. As the right atrium contracts, the corresponding lower chamber, the right ventricle, dilates. This transfers blood to the right ventricle, which in turn pumps it to the lungs for oxygenation.
