1808NRS PASS WEEK 2 QUIZ

Which of the following statements about chordae tendinae is true?

• They are located in the aorta

• They are composed of smooth muscle

• Prevent the inversion of valves during contraction

• They open the semilunar valves during diastole

Which of the following best describes the structure of papillary muscles in the heart?

• small, flat, smooth muscles located in the atria

• finger-like projections of endocardium attached to the chordae tendinae

• They are large, circular muscles found in the walls of the aorta

• They are thin, elongated muscles that line the inner walls of the ventricles

Where are the semilunar valves located in the heart?

• Between the atria and ventricles

• Within the atrial walls

• Between the atria and the major veins

• Between the ventricles and the major arteries

Which of the following is classified as an atrioventricular (AV) valve on the Right side of the heart?

• Tricuspid valve

• Mitral valve

• Aortic valve

• Pulmonary valve

All veins in the body carry deoxygenated blood back to the heart

• TRUE

• FALSE

Answer explanation

Pulmonary Veins are special veins of the Pulmonary Circuit that carry oxygenated blood back to the heart post gas exchange in the alveolar sacs