Skeleton Skull Atlas vertebrae (C1) Axis vertebrae (C2) Sternum Furcula Frontal bone Synsacrum Pygostile Carpometacarpus Mandible Sclerotic ring Biceps brachii muscle Mandible muscles Pectoralis Major muscle Supracoracoideus muscle Nervous system Brain Urogenital system – female Urogenital system – male Cardiovascular system Heart Cardiovascular system – head Respiratory system Digestive system Digestive system – detail Thyroid and parathyroid glands Uropygean gland