human_reference_atlas part of Homo sapiens muscle of leg gastrocnemius http://upload.wikimedia.org/wikipedia/commons/8/8e/Gastrocnemius.png gastrocnemius MA:0002306 involved in standing, walking, running and jumping galen:Gastrocnemius gastrocnemius muscle uberon NCIT:C32666 FMA:22541 musculus gastrocnemius UBERON:0001388 EHDAA:8293 gastrocnemius m. gastrocnemius The most superficial calf muscle in the posterior part of the leg. [TFD][VHOG] m.gastrocnemius The most superficial muscle of the triceps surae group, in the posterior portion of the lower hindleg. AS gastrocnemius muscle VHOG:0001193 EFO:0001413 gastrocnemius muscle BTO:0000506 UMLS:C0242691 In mammals this muscle has two heads[ISBN:0073040584] SCTID:181700004 Wikipedia:Gastrocnemius_muscle EHDAA2:0000701 The most prominent ventral muscle of the shank is the gastrocnemius, the 'calf' muscle. In mammals, it has two heads, resulting from the fusion of two different phylogenetic predecessors.[well established][VHOG] EMAPA:35375 triceps surae Muscle of posterior compartment of leg