Accurate Solutions
The direction of blood flow through the heart is best described by which of these?
A) Vena cava right atrium right ventricle lungs pulmonary artery left atrium left ventricle
B) Right atrium right ventricle pulmonary artery lungs pulmonary vein left atrium left ventricle
C) Aorta right atrium right ventricle lungs pulmonary vein left atrium left ventricle vena cava
D) Right atrium right ventricle pulmonary vein lungs pulmonary artery left atrium left ventricle - Answer
B. Right Atrium, Right ventricle pulmonary, artery, lungs, pulmonary vein, left atrium, left ventricle
When listening to heart sounds, the nurse knows that the valve closures that can be heard best at the
base of the heart are:
A) mitral and tricuspid.
B) tricuspid and aortic.
C) aortic and pulmonic.
D) mitral and pulmonic. - Answer C. Aortic and pulmonic
Which of these statements describes the closure of the valves in a normal cardiac cycle?
A) The aortic valve closes slightly before the tricuspid valve.
B) The pulmonic valve closes slightly before the aortic valve.
C) The tricuspid valve closes slightly later than the mitral valve.
D) Both the tricuspid and pulmonic valves close at the same time. - Answer C. The tricuspid valve closes
slightly later than the mitral valve
Tip: - Answer S1 is louder than S2 at the apex (Tricuspid and mitral valve.)
S2 is louder than S1 at the base (Aortic valve and pulmonic valve.)
Sounds are equal at Erb's point