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MT201 - Week 9
MT201 W9Muscles of the leg and foot
| Question | Answer |
|---|---|
| Gastrocnemius action | (1)Flex the Knee (tibiofemoral) (2)Plantar flex the Ankle (talocrural) (3)Inversion of the Foot |
| Gastrocnemius origin | Medial and Lateral Condyles of the Femur |
| Gastrocnemius insertion | Calcaneus via the Calcaneal Tendon |
| Soleus action | Plantar flex the Ankle (talocrural joint) |
| Soleus origin | (1) Posterior Surface of the Fibula (2) soleal Line of the tibia |
| Soleus insertion | Calcaneous via the Calcaneal Tendon |
| Peroneus (Fibularis) Longus origin | (1) Lateral condyle of the tibia (2) Head of the Fibula |
| Peroneus (Fibularis) longus insertion | (1) Lateral side of the base of the first metatarsal bone (2) medial cuneiform bone |
| Peroneus (Fibularis) Brevis action | (1) Plantar Flexion (2) Eversion of the foot |
| Peroneus (Fibularis) Brevis insertion | Lateral Tuberosity at the base of the fifth metatarsal bone |
| Peroneus (Fibularis) Brevis origin | Lateral surface of the fibula |
| Tibialis Anterior origin | (1) Lateral condyle (2) Proximal two-thirds of the anterior surface of the tibia (3) interosseus membrane |
| Tibialis Anterior insertion | base of the first metatarsal bone |
| Tibialis Anterior action | (1) Dorsiflexion (2) Inversion of the foot (3) Stabilizes the ankle |
| Extensor Digitorum Longus origin | (Lateral condyle of the fibula (2) shaft of the fibula (3) interosseus membrane |
| Extensor Digitorum Longus insertion | Four tendons attached to the second through fifth digits |
| Extensor Digitorum Longus action | (1) dorsiflexion of foot (2) eversion of foot (3) extension of toes |
| Peroneus (Fibularis) Longus action | (1) plantar flexion of the foot (2) eversion of the foot |
| Popliteus action | (1) stabilizes the knee joint (2) unlocks the flexed knee |
| Popliteus origin | Lateral condyle of the femur |
| Popliteus insertion | Posterior surface of the tibia |
| Plantaris action | (1) Plantar flexion (2) Flexion of the Knee |
| Plantaris origin | Lateral Condyle of the femur |
| Plantaris insertion | Calcaneus via the Calcaneal tendon |