The muscle at the back of the calf, whose insertion is the Achilles tendon at the heel.
gymnoceratous
pneumogastric
pneumogastric
adj
(anatomy) Of or pertaining to the lungs and the stomach
(anatomy) vagus (attributive)
noun
(anatomy) The pneumogastric nerve; one of the tenth pair of cranial nerves which are distributed to the pharynx, esophagus, larynx, lungs, heart, stomach, liver, and spleen, and, in fishes and many amphibia, to the branchial apparatus and also to the sides of the body.