LL: Leg

Question 1

Attachments for meniscus and cruciate ligaments on tibia

Answer 1

Anterior horn of medial meniscus attaches most anteriorly

PCL attaches most posteriorly

Question 2

Attachment of collateral ligaments

Answer 2

Tibial collateral: medial condyle of femur to medial tibia

Fibular collateral: lateral condyle of femur to fibular head

Question 3

Which structure separates the PCL from popliteal artery

Answer 3

oblique popliteal tendon

Question 4

Lower femur bony anatomy

Answer 4

Question 5

Proximal tibia bony anatomy

Answer 5

Question 6

Proximal fibula bony anatomy

Answer 6

Question 7

Popliteal fossa content

Answer 7

From superficial to deep

Common peroneal nerve (medial to biceps femoris)

Tibial nerve (lateral to popliteal vessels)

Popliteal vein

Popliteal artery

Question 8

The membranes separatign the compartments of the leg

Answer 8

Question 9

Which tissues stabilise tibiofibular joint

Answer 9

Interosseous membrane

Anterior and posterior tibiofibular ligaments

Question 10

Muscles of posterior compartment of leg

Answer 10

Superficial: gastrocnemius, plantaris, soleus

Deep: popliteus, flexor hallucis longus, flexor digitorum longus, tibilais posterior

Question 11

Origin and insertion of gastrocnemius

Answer 11

Medial and lateral condyle to calcaneus

Question 12

Origin and insertion of plantaris

Answer 12

Lateral supracondylar line of femur to calcaneus

Question 13

Origin and insertion of soleus

Answer 13

Soleal line/medial tibia to calcaneus

Question 14

Innervation to posterior compartment of leg

Answer 14

tibial nerve

Question 15

Function of gastrocnemius and plantaris

Answer 15

Plantar flex

Flex knee

Question 16

Function of soleus

Answer 16

Plantar flex

Question 17

Origin and insertion of popliteus

Answer 17

Lateral femoral condyle to posterior tibia

Question 18

Origin and insertion of flexor hallucic longus

Answer 18

posterior fibula to distal phalanx f big toe

Question 19

Origin and insertion of flexor digitorum longus

Answer 19

Tibia to distal phalanges of lateral 4 toes

Question 20

Origin and insertion of tibialis posterior

Answer 20

Interosseus membrane to tuberosity of navicular bone

Question 21

Function of popliteus

Answer 21

Stabilises knee joint (resists lateral flexion of tibia on femur)

Unlocks knee joint (laterally rotates femur on fixed tibia)

Question 22

Action of flexor hallucis longus

Answer 22

Flexes great toe

Question 23

Action of flexor digitorum longus

Answer 23

Flexes lateral four toes

Question 24

Action of tibialis posterior

Answer 24

Inversion

Plantarflexion

Question 25

Arterial supply of Leg

Answer 25

Sural: gastrocnemius Anterior tibial: anterior compartment Posteriro tibial: Posterior and lateral compartment

Question 26

Tibial nerve branches

Answer 26

Sural nerve Medial calcaneal nerve

Question 27

Sural nerve supplies

Answer 27

Lower posterolateral side of leg and little toe

Question 28

Medial calcaneal nerve supplies

Answer 28

Medial side of leg Sole of the heel

Question 29

Muscles of lateral compartment of the leg

Answer 29

Fibularis longus Fibularis brevis

Question 30

Origin and insertion of fibularis longus

Answer 30

Fibular head to medial cuneiform and base of metatarsal 1

Question 31

Origin and insertion of fibularis brevis

Answer 31

Lower 2/3 of fibular shaft to lateral tubercle of metatarsal 5

Question 32

Action of fibularis longus and brevis

Answer 32

Eversion

Question 33

Innervation of lateral compartment of leg

Answer 33

superficial fibular nerve

Question 34

Superficial fibular nerve sensory innervation

Answer 34

Dorsum of foot except: - web space between great and 2nd toe (Deep fibular) - lateral side of little toe (sural branch of tibial nerve)

Question 35

Muscles of anterior compartment of leg

Answer 35

Tibialis anterior Extensor hallucis longus Extensor digitorum longus Fibularis tertius

Question 36

Origin and insertion of tibialis anterior

Answer 36

Tibia to medial cuneiform

Question 37

Origin and insertion of Extensor hallucis longus

Answer 37

medial fibula to distal phalanx of distal toe

Question 38

Origin and insertion of extensor digitorum longus

Answer 38

medial fibula to distal phalanges bases

Question 39

Innervation of anterior compartment of leg

Answer 39

Deep fibular nerve

Question 40

Action of tibialis anterior

Answer 40

dorsiflexion inversion

Question 41

Action of extensor hallucis longus/digitorum longus

Answer 41

dorsiflexion Extension of great/lateral toes

Question 42

Action of fibularis tertius

Answer 42

Dorsiflexion Eversion

Question 43

Arterial supply of anterior compartment of leg

Answer 43

Question 44

Action of anterior cruciate ligament

Answer 44

stops anterior displacement of tibia on femur

Question 45

Unhappy triad of knee injuries

Answer 45

MCL, ACL and medial meniscus results from lateral blow

Question 46

Cruciate ligaments of the knee attachments

Answer 46

ACL: medial wall of alteral condyle to anterior to intercondylar eminance of tibia PCL: lateral edge of medial femoral condyle to posterior tibia

Question 47

At what point does popliteal artery bifurcate into anterior tibial and tibioperoneal trunk

Answer 47

Iower border of popliteal muscle

Question 48

What is Baker's cyst

Answer 48

A synovial cyst (abnormal collection of synovial fluid) exctruding from semimembranous bursa to popliteal space (not a true cyst as normally has communication with synovial space)