Origins and Insertions

Question 1

Gastrocnemius

Answer 1

O: Femoral condyles
I: Calcaneus (achilles tendon)
A: PF and knee flexion

Question 2

Soleus

Answer 2

O: Head and proximal shaft of fibular
I: Calcaneus via calcaneal tendon
A: PF

Question 3

Plantaris

Answer 3

O: lateral supracondylar ridge
I: Calcaneus
A: PF and knee flexion

Question 4

Tibialis Posterior

Answer 4

O: shaft of tibia and fibula
I: Navicular, cuneiforms, second third and fourth metatarsal bones
A: Inversion - main dynamic stabiliser of hindfoot against eversion (valgus) forces.

Question 5

Flexor hallucis longus

Answer 5

O: posterior fibula
I: Base of distal phalynx
A: flexes all joints of great toe, PF

Question 6

Peroneus brevis

Answer 6

O: Lateral 2/3 lateral fibula
I: Base of 5th metatarsal
A: PF, eversion

Question 7

Peroneus longus:

Answer 7

O: Lateral upper shaft of fibula
I: 1st metatarsal and medial cuneiform
A: PF, eversion

Question 8

ATFL

Answer 8

tiup of fibula anteriorly to lateral talar neck.

Question 9

PTFL

Answer 9

runs posteriorly from fibula to the talus

Question 10

Deltoid/medial

Answer 10

fan shaped. medial malleolus to navicular and talus, inferiorly to calcaneus and posteriorly to deltoid