Astronomers Refer to Elements Heavier Than Helium as _______________

question 56

Short Answer

Astronomers refer to elements heavier than helium as _______________.

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Definitions:

Pulmonary Veins

Blood vessels that carry oxygenated blood from the lungs to the left atrium of the heart.

Mitral Valve

A valve in the heart that lies between the left atrium and left ventricle, regulating blood flow and preventing backflow.

Circumflex Artery

An artery that curves around the heart muscle, supplying blood to the left atrium and the side and back of the left ventricle.

Anterior Interventricular Artery

An artery that supplies blood to the front of the interventricular septum and the adjacent walls of the two ventricles of the heart.