(1) The custom of wearing a diamond ring on the fourth finger of the left hand comes from the ancient Egyptians, who believed that the vena amoris runs directly from this finger to the heart.(2) To obtain blood samples, I punctured the vena ulnaris with a 26 gauge hypodermic needle and collected the blood in heparinized capillary tubes.(3) The vena azygos may be displaced outward, so that, instead of curving over the root of the lung, it makes a deep fissure in the upper part of the right lung, called the azygos lobe.
