12.257
Ventral muscles include muscles 15, 16, 17, 25, 26, 27, and 29. Lateral muscles include muscles 5, 6, 7, 8, 12, 13, 14, 21, 22, 23, 24, 28, and 30. Dorsal muscles include muscles 1, 2, 3, 4, 9, 10, 11, 18, 19, and 20.