Heart and Thorax Test Prep Flashcards
The roof the right ventricle is occupied by the which lies between the tricuspid and pulmonary orfiices
Crista supraventricularis
Approximately how many beats per minute is the normal adult heart rate?
60-100
70
The apex of the heart is formed by the
Left ventricle
The medial wall of the right atrium contains which one of the following structures
Interventricular septum
The inferior vena cava is guarded by a fold of tissue called the valve, whereas the coronary sinus is guarded by the valve
Eustachian, Thebesian
Which one of the following landmarks is used to separated pericardial fluid from pleural effusion
Recess of the oblique sinus
The right border of the heart is formed by the
Right atrium
The right and left coronary arteries arise from the
Ascending aorta
The superior vena cava enters the right atrium
True
The forceful contraction of the cardiac chambers is
Systole
The greatest muscle mass in the heart is found in which one of the following structures?
Left ventricle
The wall of the aorta bulges slightly at each semilunar cusp to form which one of the following
Sinus valsalva
The is the pleural reflection between the costal and diaphragmatic portions of the parietal pleura
Costophrenic sinus
The base of the heart is formed by the
Both atria but mainly left
The tricuspid valve opens when the
Right ventricle drops below RT atrial
The outflow tract of the right ventricle also is called the
Infundibulum
Two pulmonary veins enter posteriorly in which one of the following
Left atrium
The mitral valve separates which of the following sets of structures
Left atrium and left ventricle
Which one of the following structures initiates the normal cardiac impulse
Sinoatrial node
Defects in the valves may cause turbulence or regurgitation on auscultation, which is called
Murmur
Most coronary venous drainage is into the
Coronary sinus
Atrial contraction follows the on an electrocardiogram
P wave
Blood is prevented from flowing backward into the ventricle from the aorta by which one of the following valves
Semilunar valve
The pericardial sac protects the heart against which one of the following
friction
The most posterior chamber to the left of the sternum is the
Left ventricle
