This one-page card has no space for stamps or visas. A passport card is an acceptable form of entrance at the Bahamian and Jamaican borders. It is also acceptable for re-entry to the United States at sea borders.
The term âblue bloodâ means a person of noble birth. It is an idiomatic expression that originated in Spain, referring to the paleness of aristocrats who had never married into Moorish or Jewish families. In medieval Europe the nobility did not work for a living, and so remained untanned by the sun and wind of the fields.
The current mythology is that arterial blood and that exposed to the air (bleeding) is red because oxygen binds with the hemoglobin resulting is a red color. Venous blood is bluish because it is oxygen depleted which results in a blue color. The veins that carry the venous blood are just under the skin hence this is the blue blood you see. The arterial blood is carried in the arteries which are deep in the body and not seen through the skin.