Lower Limb Vascularity

Question 1

What is the function & tributaries of the great saphenous vein

Answer 1

*Drains medial end of dorsal venous arch of foot*
Superficial epigastric vein
Superficial circumflex iliac vein
External pudental vein
Superficial lateral femoral vein
Superficial medial femoral vein

Question 2

Superficial arteries of the thigh

Answer 2

Superficial epigastric artery
Superficial circumflex iliac artery
External pudental artery
Femoral artery

Question 3

What are the beginnings and continuations of the femoral a.

Answer 3

Continues from external iliac artery, turns into popliteal artery at popliteal fossa

Question 4

What are the principle branches of the femoral artery

Answer 4

Medial femoral circumflex artery
Lateral femoral circumflex artery
4 perforating arteries

Question 5

Explain the femoral vein

Answer 5

Begins: adductor tendinous opening
Continues as: external iliac vein deep to inguinal ligament
Many valves

Question 6

Muscular lacuna boundaries & contents

Answer 6

Contents: Iliopsoas, femoral nerve, lateral femoral cutaneous nerve
Boundaries: Anterior = lateral portion of inguinal ligament
Posterolateral = Ilium
Medial: iliopectineal arch

Question 7

Vascular lacuna boundaries & contents

Answer 7

Contents: Femoral artery & vein, femoral sheath, genital branch of genitofemoral nerve & lymphatic vessels
Boundaries: anterior = medial portion of inguinal ligament
Posterior = fascia of pectineus and pectineal ligament
Medial = lacunar ligament
Lateral = iliopectinal arch

Question 8

Cutaneous nerves

Answer 8

Lateral femoral cutaneous nerve
Anterior & medial cutaneous branches of femoral nerve
Cutaneous branches of obturator nerve

Question 9

Innervation of anterior and medial muscle compartments

Answer 9

Anterior: femoral nerve
Medial: obturator nerve

Question 10

Tell me about the femoral nerve

Answer 10

Arises from lumbar plexus
Enters thigh posterior to inguinal ligament, lateral to femoral artery
Divides into branches below inguinal ligament to the pectineus, sartorius, quadriceps femoris
Longest branch is saphenous nerve

Question 11

What is the longest branch of the femoral nerve

Answer 11

Saphenous nerve

Question 12

Obturator artery origin & branches

Answer 12

Arises from internal iliac artery

Divides into anterior/posterior branches

Question 13

Obturator nerve origin & supply

Answer 13

Arises from lumbar plexus
Enters through obturator canal
Divides into anterior/posterior branches
Supplies medial muscle groups of thigh, obturator exturnus & skin of medial side of thigh