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they are the right and left ventricle
The ventricles are the lower chambers of the heart. The atria are the upper chambers.
atria
yes
The two upper chambers in your heart are called the atria. One on its own is an atrium. This comes from the Latin word for an open entrance area in a house, because the atria are where the blood enters the heart after returning from either the body or the lungs.The right atrium receives blood from the body, and pumps it through the tricuspid valve into the right ventricle. The left atrium receives blood from the lungs via the pulmonary veins, and pumps it through the bicuspid valve into the left atrium.The atria have thinner walls than the ventricles, since they have to pump the blood a shorter distance than the ventricles.
The two upper chambers of the heart that collects blood are known as atria.
The receiving chambers are the atria (singular atrium). The right atrium receives deoxygenated blood from the body, and the left atrium receives oxygenated blood from the lungs. The right atria receives blood from the veins (systemic). The left atria receives blood from the lungs (pulmonary).
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The lower chambers of the heart have a different function than the upper chambers. The lower chambers pump the blood out of the heart into the body and lungs.
The left and right atrium.
The hearth valves only allow blood to flow one way.
The ventricles are the lower heart chambers that contract to pump blood. The upper chambers, atria, also contract, but to a lesser degree.