The chordae tendineaea. the atrioventricular valves,b. prevent the AV valve flaps from everting, c. contract the papillary muscles, d. open the semilunar valves.

Which of the following statements is true?

a. The tricuspid valve is located between the right atrium and the right ventricle.

b. The mitral valve is located between the pulmonary veins and the left atrium.

c. The pulmonary valve is located between the pulmonary artery and the pulmonary veins.

d. The aortic valve is located between the right ventricle and the aorta.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. The heart consists of two superior ventricles and two inferior atria.

A birth defect called transposition of great vessels results in the pulmonary trunk emanating from the left ventricle and the aorta stemming from the right ventricle.

a. Which ventricle is thicker-walled, and why?