Advanced Great Saphenous Vein Quiz

Q1. Why can harvesting the great saphenous vein from the medial leg injure the saphenous nerve?

• The nerve is confined to the lateral thigh
• The vein passes through the femoral nerve
• The nerve lies inside the lumen of the vein
• The nerve travels close to the vein along the medial leg

Q2. Why may the great saphenous vein be reversed when used as an arterial bypass graft?

• Reversal removes all tributaries automatically
• Reversal converts venous wall into arterial wall
• Reversal eliminates the need for anastomoses
• Reversal prevents venous valves from obstructing graft flow

Q3. What anatomical feature allows the great saphenous vein to communicate repeatedly with the deep venous system along the limb?

• Cutaneous arteries connect directly to its lumen
• The femoral nerve forms venous channels
• The vein repeatedly enters bone
• Perforating veins connect it with deep veins

Q4. Why can incompetent perforators worsen great saphenous varicosities?

• They denervate the vein wall
• They prevent blood from entering the foot
• They stop arterial inflow to the leg
• They can transmit deep venous pressure into the superficial system

Q5. Which anatomical relationship is especially important during procedures near the saphenofemoral junction?

• The tibial nerve lies within the junction
• The popliteal artery crosses the junction
• Multiple superficial tributaries converge near the femoral vein
• The vein passes through the obturator canal

Q6. Why can the diameter of the great saphenous vein vary along its course?

• Tributary inflow and venous pressure vary along the vein
• The vein changes into an artery in the thigh
• The vein contains rigid cartilage rings
• Its lumen is fixed by bone

Q7. How does standing influence hydrostatic pressure in the great saphenous vein?

• It reverses arterial circulation
• It closes the saphenofemoral junction permanently
• It eliminates venous pressure
• It increases dependent venous hydrostatic pressure

Q8. Why is precise preoperative mapping useful before using the great saphenous vein as a conduit?

• The vein normally has no tributaries
• The vein can vary in caliber, branching, and suitability
• Mapping is needed because the vein lies inside the femur
• The vein is always anatomically identical

Q9. Why can injury to the great saphenous vein cause significant superficial bleeding despite its low venous pressure?

• It contains contractile skeletal muscle
• It normally carries systemic arterial pressure
• It is a sizable superficial channel receiving multiple tributaries
• It is connected directly to the aorta

Q10. Which statement best integrates great saphenous vein anatomy?

• It begins behind the lateral malleolus and ends in the popliteal vein
• It runs from the medial foot through the medial limb to the femoral vein
• It is a deep vein running with the femoral artery throughout
• It begins in the popliteal fossa and ends at the medial ankle