Podcast
Questions and Answers
What is the main function of the atria in the heart based on the text?
What is the main function of the atria in the heart based on the text?
- To collect blood draining from the myocardium
- To push blood upstairs into the ventricles
- To contribute significantly to the propulsive pumping activity of the heart
- To receive blood returning from the circulation (correct)
Which veins return blood to the right atrium of the heart?
Which veins return blood to the right atrium of the heart?
- Inferior vena cava and coronary sinus
- Pulmonary veins
- Superior vena cava and inferior vena cava (correct)
- Superior vena cava and coronary sinus
Where does most of the heart's base lie?
Where does most of the heart's base lie?
- In the right atrium
- In the left atrium
- In the left ventricle (correct)
- In the right ventricle
What structures project into the ventricular cavity and play a role in valve function?
What structures project into the ventricular cavity and play a role in valve function?
Which chamber of the heart forms most of its anterior surface?
Which chamber of the heart forms most of its anterior surface?
Why are the atria described as relatively small, thin-walled chambers?
Why are the atria described as relatively small, thin-walled chambers?
What is the main function of the atria in the heart?
What is the main function of the atria in the heart?
Why are the atria described as relatively small, thin-walled chambers?
Why are the atria described as relatively small, thin-walled chambers?
Where does most of the heart's base lie?
Where does most of the heart's base lie?
Which veins return blood from body areas superior to the diaphragm to the right atrium?
Which veins return blood from body areas superior to the diaphragm to the right atrium?
What structures mark the internal walls of the ventricular chambers?
What structures mark the internal walls of the ventricular chambers?
Which chambers make up most of the volume of the heart?
Which chambers make up most of the volume of the heart?
