Week 8: Glut., Post. Thigh Vasculature

Question 1

Answer 1

Lateral inferior and superior genicular artery + vein

part of network that provides collateral circulation around knee

(anastomosis)

Question 2

Answer 2

Posterior tibial artery & vein

terminal branch of popliteal artery

supplies: posterior leg compartment and foot

vein will drain posterior leg

Question 3

Answer 3

Perforating arteries

supply majority of post. thigh muscles plus vastus lateralis

Question 4

Answer 4

Anterior tibial recurrent artery

part of anastomosis around the knee

supplies: the lateral knee via genicular arteries

Question 5

What are the boundaries of the popliteal fossa?

Answer 5

Superomedial: Semitendinosus and Semimembranosus

Superolateral: biceps femoris

Inferomedial: medial head gastrocnemius

inferolateral: lateral head gastrocnemius

Floor: Femur, post. joint capsule and popliteus mm.

roof: skin and fascia

Question 6

Answer 6

Structure: Inferior gluteal artery + vein

artery comes from terminal branch of ant. division of the internal iliac artery

Supplies:

• muscles and skin of glutes
• posterior surface of thigh

Question 7

Answer 7

Circumflex fibular artery

comes off the ant. or post. tibial artery at the knee to anastomose around the knee

Question 8

Answer 8

Long saphenous vein

anastomoses with small saphenous vein, empties into femoral vein

Question 9

Answer 9

Medial Inferior and Superior Genicular Artery and vein

artery comes off popliteal artery

part of anastomoses that provide collateral circulation for the knee region

Question 10

Answer 10

Internal pudendal artery + vein

artery comes from internal iliac artery

supplies:

• skin
• external genitalia
• muscles in perineal region

but nothing in the glute or post. thigh region

Question 11

Answer 11

Descending branch from lateral circumflex artery + vein

contributes to anastomosis around knee

Question 12

Answer 12

Arterial and venous anastomosis around knee

Question 13

Answer 13

Structure: Internal iliac artery and internal iliac vein

Origin: common iliac artery

Supplies:

• pelvic organs
• gluteal muscles
• and perineum

Question 14

Answer 14

Popliteal Artery + Vein

continuation of femoral artery

Supplies: Sup., mid., and inf. genicular arteries on both lateral and medial aspects of knee

Question 15

What are the contents of the politeal fossa?

Answer 15

• termination of small saphenous vein
• popliteal artery & vein
• post. cut. nerve of the thigh
• lymph nodes/vessels

Question 16

Answer 16

Small Saphenous vein

empties into the politeal vein in the popliteal fossa

Question 17

Answer 17

Fibular artery & vein aka peroneal artery + vein

artery comes off post. tibial artery

supplies lateral leg and ankle

vein drains into posterior tibial veins

Question 18

Answer 18

Anterior tibial artery + vein

artery comes off popliteal a.

Supplies: anterior compartment of leg

vein drains ant. compartment of leg into popliteal vein

Question 19

Answer 19

Structure: Superior Gluteal Artery + vein

artery comes from post. divison of int. iliac artery

Supplies:

• Piriformis
• all three glutes
• TFL