Week 8

Question 0

What are the contents of the popliteal fossa?

Answer 0

Popliteal artery and vein
Tibial and common fibula nerves
Terminal branch of the posterior cutaneous nerve of the thigh
Popliteal lymph nodes and vessels
Small saphenous vein

Question 1

What is the popliteal fossa?

Answer 1

A space on the posterior aspect of the knee joint
It is a passage for most of the neurovascular structures of the leg
Boundaries:
SL: biceps femoris
SM: semimembranosis and semitendonosis
IM: medial head of gastrocnemius
IL: lateral head of gastrocnemius
Roof: skin and fascia
Floor: popliteal surface of the femur, oblique popliteal ligament, popliteus muscle and fascia

Question 2

What is the difference between sural and crural?

Answer 2

Sural means calf

Crural means leg

Question 3

What is the pathway of the popliteal artery?

Answer 3

Continuation of the femoral artery, after the adductor hiatus
Passes inferiorlaterally through the popliteal fossa
Ends at the inferior border of popliteus by dividing into anterior and posterior tibial arteries

Question 4

What are the facial compartments of the leg?

Answer 4

Anterior
Posterior
Lateral

Question 5

What are the bones of the foot/ tarsal bones?

Answer 5

Talus
Calcaneus
Navicular
Cuboid
Cuneiforms
Metatarsals
Phalanges

Question 6

What are the borders of the anterior compartment of the leg?

Answer 6

Lateral surface of the tibia
Medial surface of the fibula
Interosseus membrane
Inter muscular septum
Crural fascia

Question 7

What are the contents of the anterior compartment of the leg?

Answer 7

Anterior tibial artery and vein
Deep fibulae nerve
Tibialis anterior
Extensor digitoxin longus
Extensor hallucinations longus
Fibularis tertius

Question 8

Tibial is anterior

Answer 8

O: lateral condyle of the tibia, superior half of the lateral surface of the tibia and Interosseus membrane
I: medial and inferior surface of the medial cuneiform and base of first metatarsal
NS: deep fibular nerve
A: dorks flexes ankle and dorsiflexes ankle

Question 9

Extensor digitoxin longus

Answer 9

O: lateral condyle of the tibia, superior fourth of the medial surface of the fibula, adjacent Interosseus membrane
I: extensor expansion, middle and distal phalanges of lateral 4 toes
NS: deep fibular nerve
A: extends lateral 4 digits and dorsiflexes ankle

Question 10

Extensor hallucis longus

Answer 10

O: Middle part of the anterior surface of the fibula and adjacent Interosseus membrane
I: dorsal surface of the base of the distal phalanx (first digit or big toe)
NS: deep fibula nerve
A: extends big toe and dorsiflexes ankle

Question 11

Fibularis tertius

Answer 11

O: inferior third of the anterior surface of the fibula, adjacent Interosseus membrane
I: dorsum, base of fifth metatarsal
NS: deep fibular nerve
A: dorsiflexes ankle and aids in eversion