Podcast
Questions and Answers
What is the function of the atria in the cardiovascular system?
What is the function of the atria in the cardiovascular system?
- Containing thick layer of smooth muscle in their walls
- Recoiling to prevent marked drop in arterial blood pressure
- Pumping blood to the circulation
- Storing venous return during ventricular systole (correct)
Why is the loss of ventricular function considered fatal?
Why is the loss of ventricular function considered fatal?
- It leads to a marked drop in arterial blood pressure
- It allows backflow of blood in the heart
- It is essential for pumping blood to the circulation (correct)
- It affects the resistance to blood flow in arterioles
Which valve is present between the left atrium and left ventricle?
Which valve is present between the left atrium and left ventricle?
- Aortic valve
- Tricuspid valve
- Mitral valve (correct)
- Pulmonary valve
What causes heart sounds in the cardiovascular system?
What causes heart sounds in the cardiovascular system?
What is the main function of big elastic arteries like the aorta?
What is the main function of big elastic arteries like the aorta?
Where is the main site of resistance to blood flow in the cardiovascular system?
Where is the main site of resistance to blood flow in the cardiovascular system?
Which side of the heart pumps deoxygenated blood to the pulmonary vessels?
Which side of the heart pumps deoxygenated blood to the pulmonary vessels?
Why is the wall of the left ventricle thicker than the wall of the right ventricle?
Why is the wall of the left ventricle thicker than the wall of the right ventricle?
In which part of the circulatory system does the exchange of gases occur between blood and alveolar air?
In which part of the circulatory system does the exchange of gases occur between blood and alveolar air?
What role does the systemic circulation play in the circulatory system?
What role does the systemic circulation play in the circulatory system?
Which type of vessels carry blood from venules back towards the right atrium?
Which type of vessels carry blood from venules back towards the right atrium?
What is the function of the right ventricle in the cardiovascular system?
What is the function of the right ventricle in the cardiovascular system?
What is the main function of capillaries in the cardiovascular system?
What is the main function of capillaries in the cardiovascular system?
Where is the Sinoatrial (SA) node located in the heart?
Where is the Sinoatrial (SA) node located in the heart?
Which type of muscle fibers in the heart form the conducting system?
Which type of muscle fibers in the heart form the conducting system?
What is the main function of veins in the cardiovascular system?
What is the main function of veins in the cardiovascular system?
What is the role of Atrioventricular (AV) node in the heart's conduction system?
What is the role of Atrioventricular (AV) node in the heart's conduction system?
Which structure in the heart is known as the 'pacemaker'?
Which structure in the heart is known as the 'pacemaker'?
