OINA: Foot (Structures)

Question 1

Structures that pass beneath or through the Extensor Retinaculum from medial to lateral

Answer 1

Tibialis anterior tendon

Extensor hallucis longus tendon

Anterior tibial artery with venae comitantes

Deep peroneal nerve

Extensor digitorum longus tendons

Peroneus tertius

Question 2

Structures that pass in front of the Medial Malleolus

Answer 2

Great saphenous vein

Saphenous nerve

Question 3

Structures that Pass behind the Medial Malleolus beneath the Flexor Retinaculum from medial to lateral

Answer 3

Tibialis Posterior tendon

Flexor Digitorum Longus

Posterior Tibial Artery with venae comitantes

Tibial nerve

Flexor Hallucis Longus

Question 4

Structures that pass behind the lateral malleolus superficial to the Superior Peroneal Retinaculum

Answer 4

The Sural Nerve

Small saphenous vein

Question 5

Structures that pass behind the lateral malleolus beneath the Superior Peroneal Retinaculum

Answer 5

Peroneus longus tendon

Peroneus brevis tendon

*Both share a common synovial sheath until below inferior peroneal retinaculum

Question 6

Muscles of the sole of the foot (four layers) - First layer

Answer 6

First layer - Abductor hallucis, flexor digitorum brevis, abductor digiti minimi

Question 7

Muscles of the sole of the foot (four layers) - second layer

Answer 7

Second layer - Quadratus plantae, Lumbricals, Flexor Digitorum Longus tendon, Flexor Hallucis Longus tendon

Question 8

Muscles of the sole of the foot (four layers) - third layer

Answer 8

Third layer - Flexor Hallucis Brevis, Adductor Hallucis, Flexor Digiti Minimi Brevis

Question 9

Muscles of the sole of the foot (four layers) - fourth layer

Answer 9

Fourth layer - Interossei, Peroneus Longus tendon, Tibialis Posterior Tendon