popliteal vessels and nerves of leg and dorsum of foot

Question 1

boundaries of popliteal fossa

Answer 1

superolateral- tendon of biceps femurs
superomedial- semimembranous and semitendinosus
inferolateral- lateral head gastrocnemius
inferomedial- medial head gastrocnemius
roof- popliteal fascia of fascia lata
floor- posterior surface of capsule of knee and popliteus muscle

Question 2

contents of popliteal fossa

Answer 2

1. termination of posterior femoral cutaneous nerve
2. division sciatic nerve into tibial and common fibular components
3. muscular and cutaneous branches of tibial nerve
4. cutaneous branches of common fibular nerve
5. popiteal vein and tributaries
6. popliteal artery and branches
7. popliteal lymph nodes, lymphatic vessels and fat

Question 3

order of encounters of contents of popliteal fossa

Answer 3

Superifical- deep
nerves
veins
arteries

Question 4

popliteal artery

Answer 4

from adductor hiatus to inferior border of popliteus muscles

Question 5

popliteal artery branches

Answer 5

1. lateral superior genicular
2. medial superior genicular
3. lateral inferior genicular
4. medial inferior genicular
5. middle genicular
6. sural branches
7. anterior tibial

Question 6

anterior tibial artery posterior branches

Answer 6

1. posterior tibial recurrent

2. circumflex fibular

Question 7

anterior tibial artery anterior branches

Answer 7

1. anterior tibial recurrent
2. medial malleolar branches
3. lateral malleolar branches
4. dorsalis pedis artery

Question 8

dorsalis pedia artery

Answer 8

1. lateral tarsal artery
2. medial tarsal artery
3. arcuate artery
4. first dorsal metatarsal artery
5. deep plantar artery

Question 9

posterior tibial artery branches

Answer 9

1. circumflex fibular (sometimes)
2. fibular
3. communicating
4. posterior medial malleolar
5. medial calcaneal
6. medial plantar
7. lateral plantar

Question 10

fibular artery branches

Answer 10

1. muscular
2. nutrient
3. communicating
4. perforating
5. posterior lateral malleolar
6. lateral calcaneal

Question 11

genicular anastomosis

Answer 11

• 10 arteries involved
• arise from lateral femoral circumflex, femoral artery, popliteal artery, anterior tibial, and posterior tibial
• forms:
  1. superficial plexus- provides blood to muscles at knee
  2. deep plexus- lies on capsule of knee joint

Question 12

Pes Anserinus

Answer 12

• sartorius, gracilis, and semitendinosus muscles attach to medial tibial condyle
• each muscles arises in different compartment
• muscles have same action: flexion and medial rotation of tibia when tibia is flexed

Question 13

crutiate anastomosis

Answer 13

• inferior gluteal artery
• transverse branch of profunda femoral artery
• medial femoral circumflex artery
• 1st perforating artery of profunda branch

Question 14

passage of tendons behind medial malleolus

Answer 14

• in posterior crural compartment: D,T,H

- behind medial malleolus: T,D, (an) H