blood group

Table of Contents

References & Edit History Quick Facts & Related Topics

Images & Videos

How much blood is in the human body?

Why is blood red?

Read Next

Transfused Human blood in storage

The Strange, Grisly History of the First Blood Transfusion

Discover

Title: Senate Square, St. Petersburg, December 14, 1825: repression of the troop mutiny - watercolor by Carl Ivanovitch Kollman, 1825 depicts Decembrist uprising clashing with cavalry, with spectators watching. (new style December 26, 1825) Europe. Saint

8 of the Largest Empires in History

Woman tied to a ducking stool, a method of punishment by means of humiliation, beating, or death. (cucking stool)

8 Unusual Punishments Inflicted on Women Throughout History

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

Rural Irish landscape, Sligo, Ireland.

Why Is Ireland Two Countries?

A human Inuit skull in a stone chambered cairn in Ilulissat in Greenland. These ancient graves are pre christian and are at least 2000

14 Tough Questions Answered

Thanksgiving Turkey with all the sides

Why Do We Eat Turkey on Thanksgiving?

Thanksgiving Celebration Traditional Dinner Setting Food Concept

Why Is Thanksgiving in the U.S. Celebrated on a Thursday?

blood group: Media

Videos

How much blood is in the human body?

How much blood is in the human body?

And how much do you really need?

Video: Encyclopædia Britannica, Inc.

Why is blood red?

Why is blood red?

Are you “red-y” to find out?

Video: Encyclopædia Britannica, Inc.

Images

red blood cell

red blood cell

Human red blood cells.

© Studio29ro/Dreamstime.com

VIEW MORE in these related Britannica articles: