这是美国正常成年人的大动脉。暗红色的污点是红细胞坏死后漏出的血色素造成的。表面非常光滑，偶尔见到微小的黄*色脂质条纹。
This is about as normal as an adult aorta in America gets. The faint reddish staining is from hemoglobin that leaked from RBC's following death. The surface is quite smooth, with only occasional faint small yellow lipid streaks visible.