Posterior leg

Question 1

Flexor digitorum longus

Answer 1

Attachments: medial posterior tibia inferior to soleal line, plantar bases of distal phalanges of lateral 4 digits
Innervation: tibial nerve
Actions: flexes lateral 4 digits and PF ankle, supports longitudinal arch of foot

Question 2

Flexor hallucis longus

Answer 2

Attachments: posterior fibula and interosseus membrane to base of distal phalanx of great toe
Innervation: tibial nerve
Actions: flexes all joints of great toe, weak PF

Question 3

Gastrocnemius

Answer 3

Attachments: both heads attach distally to posterior calcaneus
lateral head - lateral epicondyle of femur
medial head - popliteal surface above medial epicondyle of femur
Innervation: tibial nerve
Actions: PF, assists with knee flex

Question 4

Plantaris

Answer 4

Attachments: inferior/lateral supracondylar line of femur and oblique popliteal ligament to posterior calcaneus (with gastroc)
Innervation: tibial nerve
Actions: weak assist to gastroc

Question 5

Popliteus

Answer 5

Attachments: lateral femoral condyle and lateral meniscus to posterior tibia above soleal line
Innervation: tibial nerve (L4-S1)
Actions: weak knee flexor, unlocks knee by rotating femur on fixed tibia

Question 6

Soleus

Answer 6

Attachments: posterior fibular head and soleal line of tibia to posterior calcaneus (with gastroc & plantaris)
Innervation: tibial nerve
Actions: PF

Question 7

Tibialis posterior

Answer 7

Attachments: posterior tibia and fibula below soleal line, interosseus membrane to navicular tuberosity, all cuneiforms, cuboid and bases of mets 2-4
Innervations: tibial nerve
Actions: PF, INV