dog anatomy - internal anatomy of a male dog

anal anatomy animalia animals anus aorta backbone biological biology bones brain canine cells chordata circulatory colon cord dog drawing duodenum gastric graphic heart hepatic ileum illustration image intestines jejunum juice life liver mammal mammalia mesentery nerve pancreas pericardium rectum science scientific small spinal spine spines spleen stomach tail thorax vertebra vertebrae vertebrates whiskers zoological zoology