Podcast
Questions and Answers
Which part of the heart forms the superior part of the left border of the heart and overlaps the root of the pulmonary trunk?
Which part of the heart forms the superior part of the left border of the heart and overlaps the root of the pulmonary trunk?
- The right atrium
- The right auricle
- The left atrium
- The left auricle (correct)
Which veins enter the smooth-walled left atrium?
Which veins enter the smooth-walled left atrium?
- Superior and inferior vena cava
- Pulmonary trunk and aorta
- Right and left pulmonary veins (correct)
- Right and left coronary veins
What does the semilunar depression in the interatrial septum indicate?
What does the semilunar depression in the interatrial septum indicate?
- The right atrium
- The floor of the oval fossa (correct)
- The valve of the oval fossa
- The left atrium
What forms most of the base of the heart?
What forms most of the base of the heart?
Which chamber of the heart contains an interatrial septum that slopes posteriorly and to the right?
Which chamber of the heart contains an interatrial septum that slopes posteriorly and to the right?
Where does the left atrium discharge the oxygenated blood it receives from the pulmonary veins?
Where does the left atrium discharge the oxygenated blood it receives from the pulmonary veins?
Which part of the left atrium contains pectinate muscles?
Which part of the left atrium contains pectinate muscles?
How does the wall thickness of the left atrium compare to that of the right atrium?
How does the wall thickness of the left atrium compare to that of the right atrium?
Through which orifice does the left atrium discharge its blood into the left ventricle?
Through which orifice does the left atrium discharge its blood into the left ventricle?
Which ventricle performs more work due to the higher arterial pressure in the systemic circulation?
Which ventricle performs more work due to the higher arterial pressure in the systemic circulation?
What is the thickness ratio between the walls of the left ventricle and the right ventricle?
What is the thickness ratio between the walls of the left ventricle and the right ventricle?
What covers the walls of the left ventricle?
What covers the walls of the left ventricle?
Which ventricle has a conical cavity that is longer?
Which ventricle has a conical cavity that is longer?
Which chamber has larger anterior and posterior papillary muscles?
Which chamber has larger anterior and posterior papillary muscles?
What is the name of the smooth-walled, non-muscular outflow part of the left ventricle?
What is the name of the smooth-walled, non-muscular outflow part of the left ventricle?
What valve guards the left atrioventricular orifice?
What valve guards the left atrioventricular orifice?
Where is the aortic orifice located in the left ventricle?
Where is the aortic orifice located in the left ventricle?
What structure attaches the cusps of the aortic valve to the fibrous ring surrounding the aortic orifice?
What structure attaches the cusps of the aortic valve to the fibrous ring surrounding the aortic orifice?
Which valve is located posterior to the sternum at the level of the 4th costal cartilage?
Which valve is located posterior to the sternum at the level of the 4th costal cartilage?
What is the function of the tendinous cords in the mitral valve?
What is the function of the tendinous cords in the mitral valve?
What is the significance of the reversal of flow around the anterior cusp of the mitral valve?
What is the significance of the reversal of flow around the anterior cusp of the mitral valve?
Where is the semilunar aortic valve located?
Where is the semilunar aortic valve located?
What supports the mitral valve and allows it to resist the pressure developed during contractions of the left ventricle?
What supports the mitral valve and allows it to resist the pressure developed during contractions of the left ventricle?
Which of the following statements about pectinate muscles is true?
Which of the following statements about pectinate muscles is true?
What is the function of pectinate muscles in the right atrium?
What is the function of pectinate muscles in the right atrium?
Which chamber of the heart has less developed pectinate muscles?
Which chamber of the heart has less developed pectinate muscles?
