The Superficial Muscles of a Cow
In mammals the muscles in their general plain resemble those of humans. The superficial muscles of a cow are diagramed. Labels: 1, Occipito-Frontalis. 2, Orbicularis Palpaebrarum. 3, Masseter. 5, Sterno-cleido-Mastoid. 6, Trapezius. 7, Latissimus Dorsi. 8, Pectoralis. 9, 10, External and Internal oblique muscles. 11, Opening of the mammary artery and vein (milk vein). 12, Gluteii. 13, Rectus Femoris muscle.
Cutter, Calvin First Book on Analytic Anatomy, Physiology and Hygiene, Human and Comparative (Philadelphia: J. B. Lippincott & Co., 1875) 46