The circumflex artery is a branch of the a. Left coronary artery b. Right corona

Question

The circumflex artery is a branch of the a. Left coronary artery b. Right coronary artery c. Left anterior descending artery d. Anterior interventricular artery The tricuspid valve a. Is a semilunar valve b. Is located between the left ventricle and aorta c. Is located between the right atrium and right ventricle d. Is located between the right ventricle and pulmonary artery The anterior surface of the heart is made up mostly of: a. Left atrium b. Right atrium c. Left ventricle d. Right ventricle

Explanation / Answer

1.Circumflex artery is a branch of LEFT CORONARY ARTERY(option.A)

Two main coronary arteries are left and right coronary arteries. The left coronary arteries divides into the left anterior descending artery and circumflex branch supplies the blood to ventricles and left atrium.

2.The tricuspid valve is located between RIGHT ATRIUM AND RIGHT VENTRICLE ( option c)

Another name for tricuspid valve is right atrio-ventricular valve.

3.The anterior surface of heart is mostly made up of RIGHT VENTRICLE ( option d)

The heart right border is comprised of right atrium,left border is left ventricle,anterior surface is right ventricle,

and posterior is left atrium.

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