Leg And Foot

Question 1

Superior extensor retinacula

Answer 1

Med- ant border of tibia. Lat- ant border of fibula. Enclose tibialis anterior.

Question 2

Inferior extensor retinacula

Answer 2

Stem: sup surface of calcaneum
Upper band: ant border of medial malleolus
Lower band: plantar aponeurosis.
Tibialis ant, extn hallucis longus, ant tibial vessels, deep peroneal nerve, extn digitorum longus, peroneus tertius

Question 3

Anterior tibial artery

Answer 3

Smaller of popliteal, lower border of popliteus, interosseous, b/w 2 malleoli m- dorsalis pedis.
Tibialis ant&extn digi, then tibialis ant&extn hallucis, then extn hallucis&exnt digi

Branches: muscular, anastomotic, ant&post tibial recurrent, ant med&lat malleolar.

Question 4

Muscles of anterior compartment of leg and dorsum of foot

Answer 4

Tibialis anterior: inferimedial surface of medial cuneiform, base of 1st metatarsal
Extn hallucis longus
Extn digi longus
Peroneus tertius: lower 1/4 fibula, mb; base of 5th metatarsal.
Extn digitorum brevis: ant part of sup surface of calcaneum, dorsal digital expansion, proximal phalanx

Question 5

Deep peroneal nerve

Answer 5

Term of common peroneal, lat side of fibula, enter ant comp, pierce extn digi longus, accompany ant tibial artery. End on dorsum, lat&med terminal branches.

Branches: muscular, cutaneous, articular: ankle, tarsal, tarsometatarsal, metatarsophalangeal

Question 6

Dorsalis pedis

Answer 6

1st intermetatarsal space, dips.
Superficial relations: skin, fascia, extn hallucis brevis
Deep: capsular lig of ankle joint, talus, navicular, intermed cuneiform. Med&lat

Branches: lat tarsal, med tarsal, arcuate- 2,3,4 dorsal metatarsal artery
1st dorsal metatarsal before dipping

Question 7

Peroneal muscles

Answer 7

Peroneus longus: head of fib, upper 1/3; lat side of base of 1st metatarsal, med cuneiform.
Peroneus brevis: middle 1/3, lower; lat side of base of 5th metatarsal.
Superficial peroneal nerve
Peroneal artery.

Question 8

Superior and inferior peroneal retinacula

Answer 8

Superior: lat malleolus, calcaneum
Inferior: ant surface of calcaneum, lateral surface of calcaneum

Question 9

Superficial peroneal nerve

Answer 9

Smaller terminal branch, lat side of fibula, course, relations, branches: muscular, cutaneous, medial branch, lateral branch, communicating branch.

Question 10

Guy ropes

Answer 10

Sartorius: ant comp, femoral nerve
Gracilis: med comp, obturator nerve
Semitendinosus: post comp, sciatic nerve
Spread out to span pelvis, stabilise bony pelvis. 
Medial surface of tibia.

Question 11

Anserine bursa

Answer 11

Large, complicated, several diverticula.

Sep tendons of guy ropes from one another, from bony surface, from tibial collateral ligament

Question 12

Structures passing under the retinacula

Answer 12

Tibialis anterior
Extn hallucis longus 
Ant tibial artery
Deep peroneal nerve 
Extn digi longus
Peroneus tertius