Podcast
Questions and Answers
What is the main function of the intima in the venous system?
What is the main function of the intima in the venous system?
- To promote thrombogenesis (correct)
- To regulate blood flow through muscular contraction
- To provide structural support
- To facilitate gas exchange
Which of the following factors contributes to venous flow against gravity?
Which of the following factors contributes to venous flow against gravity?
- Abdominal pressure
- Thoracic pressure
- Arterial inflow
- Venous pumping (correct)
What is the primary effect of high intra-abdominal pressure on venous return?
What is the primary effect of high intra-abdominal pressure on venous return?
- It has no effect on venous return
- It increases venous flow towards the heart
- It decreases venous pressure in the abdominal veins
- It impedes venous return from the lower limbs (correct)
What is the result of retrograde flow in the venous system?
What is the result of retrograde flow in the venous system?
What is the role of the adventitia in the venous system?
What is the role of the adventitia in the venous system?
What is the effect of negative intrathoracic pressure on venous flow?
What is the effect of negative intrathoracic pressure on venous flow?
What percentage of venous blood return to the heart is attributed to the deep veins?
What percentage of venous blood return to the heart is attributed to the deep veins?
What is the primary function of the valves in the superficial, deep, and perforating veins?
What is the primary function of the valves in the superficial, deep, and perforating veins?
What is the result of increased abdominal cavity pressure during inspiration?
What is the result of increased abdominal cavity pressure during inspiration?
What is the ejection fraction of the calf muscle pump?
What is the ejection fraction of the calf muscle pump?
What is the longest vein in the body?
What is the longest vein in the body?
What is the function of the perforating veins?
What is the function of the perforating veins?
What is the result of valve closure in the superficial, deep, and perforating veins?
What is the result of valve closure in the superficial, deep, and perforating veins?
What is the common site for primary varicose veins?
What is the common site for primary varicose veins?
What is the result of deep vein thrombosis?
What is the result of deep vein thrombosis?
What is the origin of pulmonary emboli?
What is the origin of pulmonary emboli?
