Leg/Foot Post Compartment Flashcards
Posterior Compartment- Superficial
Gastrocnemius
Soleus
Plantaris
Gastrocnemius
PA: Medial Head: Post surface of the medial femoral condyle lateral to the adductor tubercle and to the adjoining portion of the popliteal surface.
Lateral head: Lat fem condyle along its lat surface and th adjoining supracondylar line
DA: Post surfcae of the calcaneus at its mid level
Inn: Tibial n (S1,2)
Actions: PF ankle, flexes knee, controls ant tibial advancement during gait
Soleus
PA: Post aspect of the fibular head, posterior shaft of the fibula along its proximal 1/4, tibial soleal line, middle 1/3 of tibial medial border
DA: Post surface of the calcaneus at its midlevel
Inn: Tibial n (S1,2)
Actions: PF the ankle
Plantaris
PA: Distal aspect f the lat supracondylar line of the femur and oblique popliteal ligament
DA: Med border of calcaneal tendon and hence to posterior aspect of calcaneus
Inn: Tibial n (S1,2)
Actions: Weakly PF the ankle
Post Compartment-Deep
Popliteus
FDL
FHL
TP
Popliteus
PA: Lat femoral condyle on impression on the distal most portion of the lat supracondylar line
DA: Post tibia proximal to the soleal line
Inn: Tibial n (L4,5, S1)
Actions: Unlocks the extended fully knee
OC: Med rotates the tibia
CC: Lat rotates the femur
Tibialis Posterior
PA: Most of interosseus membrane, lat portion of post surface of tibia, prox 2/3 of med surface of fibula, adj intermuscular septa and deep fascia
DA: Navicular tuberosity, plantar surface of medial cuneiform, sustentaculum tali, plantar aspects of the intermediate cuneiform and bases of the 2nd -4th MT
Inn: Tibial n (L4,5)
Actions: Inverts the foot (principle inverter), PF ankle and foot
Flexor Digitorum Longus
PA: MEdial part of post surface of tibia inferior to soleal line and fascia covering tibialis posterior
DA: Distal phalanges of the 4 lesser toes along their plantar aspects
Inn: Tibial n (S1,2,3)
Actions: Flexes the phalanges and PF ankle
Flexor Hallucis Longus
PA: Post surface of the fibula along distal 2/3, adj interosseous membrane and the posterior intermuscular septum.
DA: Plantar aspect of the distal phalanx of the hallux
Inn: Tibial n (S1,2,3)
Actions: Flexes the great toe and PF the ankle
Lateral Compartment
Peroneus Longus
Peroneus Brevis
Peroneus Longus
PA: Head of fibula, lat surface of the fibula along its prox 2/3, A & P intermuscular septa
DA: Med cuneiform and 1st MT base along their lateral and plantar surfaces
Inn: Superficial peroneal (L5, S1,2)
Actions: Everts foot, PF foot and ankle, PF 1st ray
Peroneus Brevis
PA: Lat surface of the fibula along it distal 2/3. A & P intermuscular septa
DA: 5th MT base at its lateral tubercle
Inn: Superficial peroneal (L5,S1,2)
Actions: Everts the foot
Flexor Retinaculum
- Med to talocrural joint
- Med malleolus to calcaneus
TomDickANHarry
Posterior tib
FDL
Post tib Artery
tibial nerve
FHL
