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blood
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Function of red blood cells explained
Observe how a red blood cell travels from the heart to the lungs and other body tissues to exchange oxygen and carbon dioxide
How much blood is in the human body?
Why is blood red?
blood components diagram blood plasma red blood cell bone marrow smear showing myelocytes hemoglobin tetramer
Learn about sickle cell anemia and how a tiny microfluidic device can help analyze the behaviour of blood from sickle cell patients
For Students
blood summary
Quizzes
Superficial arteries and veins of face and scalp, cardiovascular system, human anatomy, (Netter replacement project - SSC)
The Human Body
Read Next
Lateral view of an adult bedbug, Cimex lectularius, as it was in the process of ingesting a blood meal from the arm of a voluntary human host. Photo dated 2006.
8 Animals That Suck (Blood)
Diagram showing human heart
What’s the Difference Between Veins and Arteries?
Transfused Human blood in storage
The Strange, Grisly History of the First Blood Transfusion
Hand washing. Healthcare worker washing hands in hospital sink under running water. contagious diseases wash hands, handwashing hygiene, virus, human health
17 Questions About Health and Wellness Answered
pulmonary veins and arteries, circulation, cardiovascular system, human anatomy, (Netter replacement project - SSC)
13 Questions About How the Human Body Works Answered
Discover
January 21, 2019: Superbowl LIII will be played at Atlanta's Mercedes-Benz Stadium on Sunday, February 3, 2019 against the New England Patriots and the Los Angeles Rams.
What Was the Super Bowl’s First Blockbuster Commercial?
Data analysis of the Super Bowl's "winningest" teams, game locations, MVP winners by position, teams with the most game losses. football, sports, infographic
From Sport to Spectacle: The History of the Super Bowl
Chapter 4 pg 42 - Chapter header of The Adventures of Tom Sawyer by Mark Twain. Published in 1884 by The American Publishing Company
Periods of American Literature
Secret Service Agent Listens To Earpiece
Secret Service Code Names of 11 U.S. Presidents
pg 229Nazi parade features a banner proclaiming, "Death to Marxism."The possibility of a peaceful Germany after World War I was precluded entirely by the terms of the Versailles Treaty and theintransigent hostility of France and England. Stripped of indu
Were the Nazis Socialists?
winter ice melting salt on the ground, pattern as background
Why Does Salt Melt Ice?
Parsons Weems' Fable, oil on canvas by Grant Wood, 1939; in the Amon Carter Museum of American Art. Catalog entry: The historian Mason Locke Weems, commonly known by his clerical title, Parson Weems, pulls back a curtain to point at 6-year-old George Washington. Bearing an adult head and holding an axe, George gazes blankly up at his father, Augustine, who questions his son while holding a partially cut cherry tree. All of this takes place in front of a 20th-century brick building, which Wood modeled after his own home in Iowa. The scene illustrates the fable of Washington and the cherry tree, which Weems invented in 1806 for the first president's biography. Wood playfully suggests the artifice of the tale here, presenting the story in the manner of a costumed stage play rather than a real event. Amid the action, two Black figures pick cherries in the background, a reference to Washington' slaveholding past and a reminder of of what often gets left out in historical mythmaking.
Did George Washington Really Say, “I Can’t Tell a Lie”?

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Photos and Videos

blood components diagram
blood plasma
red blood cell
bone marrow smear showing myelocytes
hemoglobin tetramer
Macrophage structure
MRSA and neutrophil
human lymphocyte
human T cell; human T lymphocyte
platelet
Function of red blood cells explained
Observe how a red blood cell travels from the heart to the lungs and other body tissues to exchange oxygen and carbon dioxide
How much blood is in the human body?
Why is blood red?
Learn about sickle cell anemia and how a tiny microfluidic device can help analyze the behaviour of blood from sickle cell patients
See All Videos and Images →

Related Topics and References

Topics

Key People

Stephen Hales
Stephen Hales
English scientist
Edwin Joseph Cohn
American biochemist
William Harvey
William Harvey
English physician
Claude Bernard, detail of a lithograph by A. Laemlein, 1858
Claude Bernard
French scientist
Marcello Malpighi
Marcello Malpighi
Italian scientist
Bernardo Alberto Houssay
Argentine physiologist
Charles Richard Drew
Charles Richard Drew
American physician
Nuttall, George Henry Falkiner
George Henry Falkiner Nuttall
British biologist
Walter Bradford Cannon
American neurologist and physiologist
Ernst Felix Hoppe-Seyler
German physician

Related Quizzes and Features

Quiz
Superficial arteries and veins of face and scalp, cardiovascular system, human anatomy, (Netter replacement project - SSC)
The Human Body
Superficial arteries and veins of face and scalp, cardiovascular system, human anatomy, (Netter replacement project - SSC)
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List
Hand washing. Healthcare worker washing hands in hospital sink under running water. contagious diseases wash hands, handwashing hygiene, virus, human health
17 Questions About Health and Wellness Answered
Lateral view of an adult bedbug, Cimex lectularius, as it was in the process of ingesting a blood meal from the arm of a voluntary human host. Photo dated 2006.
8 Animals That Suck (Blood)
pulmonary veins and arteries, circulation, cardiovascular system, human anatomy, (Netter replacement project - SSC)
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Demystified
Diagram showing human heart
What’s the Difference Between Veins and Arteries?