lower limb venous drainage

Question 1

State the 3 types of veins giving examples

Answer 1

1. Superficial veins- run in deep fascia : great saphenous and small saphenous
2. Deep veins- run with muscles : femoral, popliteal and tibial veins
3. Communicating veins- connect deep and superficial veins

Question 2

Discuss the superficial veins

Answer 2

Origin: great saphenous arises from the medial end and small saphenous arises from lateral end of dorsal venous arch.
Termination: great saphenous terminates in femoral vein and small saphenous, popliteal vein.
Relations: great= in front of medial malleolus and accompanied by saphenous nerve, small= behind lateral malleolus and accompanied by sural nerve

Question 3

Clinical importance of veins

Answer 3

1. Veins contain valves to prevent back flow of blood
2. Varicose veins- dilated, elongated, tortuous saphenous veins. Due to weakness in the vein walls, damage of the valves or obstruction of the deep veins by thrombosis.
3. Vein graft in coronary bypass surgery