Structures in the superficial fascia |
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The saphenous venous system
- Great saphenous vein
- Small saphenous vein
- Accessory saphenous vein
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The long saphenous vein |
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Origins |
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medial continuation of the dorsal venous arc, joined by the medial marginal vein of the foot. (Dorsal Venous arc [D.V.A] forming the long saphenous vein [L.S.V] on the medial side of the foot )
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Course |
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- Runs a thumb breath anterior and medial to the medial malleolus
- Medial surface of the distal tibia
- Behind the medial border of the proximal tibia
- Handbreadth behind medial border of patella
- Runs with sapheous nerve
- Medial convexity of the thigh
- Passes through saphenous opening 3-4cm below and lateral to the pubic tubercle
Communications
With the small saphenous vein
With the thoraco-abdominal veins via the superficial epigastric vein
With the deep veins via the perforators. The perforating veins have valves that ensure blood flow only from superficial to deep.
what conditions predispose to varicose veins
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Termination |
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Femoral vein ( note the long saphenous vein[D] terminating into the femoral vein [C] ) s
what is meant by venous cutdown
name the contents of the femoral triangle shown on the diagram
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b ) Small saphenous vein |
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Origin |
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lateral continuation of the dorsal venous arch ( note the small saphenous vein [s.s.v] originating from the dorsal venous arch [D.V.A] on the lateral side of the foot)
Course
Lies with sural nerve behind lateral malleolus.
Passes in the midline of the calf
Pierces the deep fascia midleg
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Tributaries
Several unnamed tributaries at the back of the leg
Termination
Popliteal vein ( small saphenous vein [S.S] runnig together with the sural nerve [C] and terminating in the popliteal fossa to popliteal vein ) with long
Communication
- saphenous vein
- With deep veins
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Cutaneous nerves |
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- Posterior cutaneous nerve of the thigh
- Lateral cutaneous nerve of the calf
- Sural nerve
- Saphenous nerve
- Lateral cutaneous nerve of the leg(musculocutaneous nerve)
Name the other nerves
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