Examlex
Which phrase best describes a covalent bond between two atoms?
Valves
Structures in the heart and veins that maintain blood flow in one direction, preventing backflow.
Systemic Circulation
The part of the cardiovascular system that carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart.
Right Ventricle
The chamber within the heart that is responsible for pumping oxygen-depleted blood to the lungs for oxygenation, located in the lower right portion of the heart.
Aorta
The largest artery in the body, originating from the left ventricle of the heart and extending down to the abdomen, distributing oxygenated blood to all parts of the body.
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