Stott Pilates Exam Prep-Actions, Origins and Insertions of Muscles with complete solution

Gastrocnemius - ANSWER-A: plantarflexes and inverts foot at ankle, O:femoral condyles I: Calcaneus via achilles tendon Soleus - ANSWER-A: plantarflexes and inverts foot at ankle O: Upper 1/3 of fibia I: Calcaneus via achilles tendon Tibialis Anterior - ANSWER-A: Dorsiflexes and inverts foot at ankle O: Lateral condyle of tibia I: plantar surface of first metatarsal and cuneiform Tibialis Posterior - ANSWER-A: Inverts and plantarflexes the foot at ankle. Medial ankle stabilizer. O: Lateral part of posterior surface of tibia, proximal 2/3 of medial surface of fibula. I: Tuberosity of navicular, with branches to sustenaculum tali of calcaneus, plantar surfaces of all 3 cuneiforms, cuboid, and bases of 2nd, 3rd, and 4th metatarsal bones. Popliteus - ANSWER-A: Rotates tibia medially on the femur, or femur laterally on tibia. Brings knee out of full extension. Helps with posterior stability of knee O: Lateral condyle of the femur I: Posterior surface of tibia above soleal line. Plantaris - ANSWER-A: plantar flexes and inverts the foot at the ankle, flexes the leg at the knee. O: Lower part of lateral supracondylar line of femur, and oblique popliteal ligament of knee.