ID the Muscle:
Proximal Attachment - Posterior aspect of head and superior quarter of posterior surface of fibula; soleal line and middle third of medial border of tibia; and tendinous arch extending between the bony attachments
Distal Attachment - Posterior surface of calcaneus via calcaneal tendon
Innervation - Tibial nerve
Action - Plantarflexes ankle independent of position of knee; steadies leg on foot