मराठी

Blood Vessels Entering and Leaving The Heart

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Chemical Reactions and Equations
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Our Environment

Key Points: Blood Vessels Entering and Leaving the Heart

CISCE: Class 10

Key Points: Blood Vessels Entering and Leaving the Heart

The right atrium receives deoxygenated blood through two veins: the anterior vena cava (from the upper body) and the posterior vena cava (from the lower body).
The left atrium receives oxygenated blood through four pulmonary veins, two from each lung.
The pulmonary artery arises from the right ventricle and carries deoxygenated blood to the lungs for oxygenation.
The aorta arises from the left ventricle and distributes oxygenated blood to all parts of the body.
The coronary arteries, branching from the base of the aorta, supply blood to the heart muscles; their blockage can cause myocardial infarction (heart attack) or angina pectoris due to reduced blood supply.