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heart human heart
The human heart and cardiovascular system explained
Why is blood red?
How much blood is in the human body?
electrical conduction in the heart
Hear an exposed human heart beating
heart Single photon emission computed tomography (SPECT) can be used to image blood flow to the heart (left) in order to monitor conditions such as ischemia (decreased blood flow). When information gathered via SPECT is combined with imaging information from computed tomography (CT), a fusion image (centre and right) can be obtained. reptilian heart types
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Male muscle, man flexing arm, bicep curl.
Facts You Should Know: The Human Body Quiz
3d illustration human heart. Adult Anatomy Aorta Black Blood Vessel Cardiovascular System Coronary Artery Coronary Sinus Front View Glowing Human Artery Human Heart Human Internal Organ Medical X-ray Myocardium
Human Organs
Superficial arteries and veins of face and scalp, cardiovascular system, human anatomy, (Netter replacement project - SSC)
The Human Body
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pulmonary veins and arteries, circulation, cardiovascular system, human anatomy, (Netter replacement project - SSC)
13 Questions About How the Human Body Works Answered
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Ice Sledge Hockey, Hockey Canada Cup, USA (left) vs Canada, 2009. UBC Thunderbird Arena, Vancouver, BC, competition site for Olympic ice hockey and Paralympic ice sledge hockey. Vancouver 2010 Olympic and Paralympic Winter Games, Vancouver Olympics
10 Best Hockey Players of All Time
Close-up of ostriches (Struthio camelus) necks and heads; location unknown.
6 of the World's Most Dangerous Birds
Colorful winter sunset
What's the Difference Between a Solstice and an Equinox?
Saint Lucia Day. Young girl wears Lucia crown (tinsel halo) with candles. Holds Saint Lucia Day currant laced saffron buns (lussekatter or Lucia's cats). Observed December 13 honor virgin martyr Santa Lucia (St. Lucy). Luciadagen, Christmas, Sweden
7 Winter Solstice Celebrations From Around the World
Watergate scandal. Richard M. Nixon. President Nixon gives a press conference and talks to the press, March 12, 1971.
9 American Political Scandals
Hemp (Cannabis sativa).
9 Mind-Altering Plants
Coriander leaves, fresh green cilantro on wooden background, herbs
Why Does Cilantro Taste Like Soap to Some People?

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Photos and Videos

heart
human heart
electrical conduction in the heart
heart
Single photon emission computed tomography (SPECT) can be used to image blood flow to the heart (left) in order to monitor conditions such as ischemia (decreased blood flow). When information gathered via SPECT is combined with imaging information from computed tomography (CT), a fusion image (centre and right) can be obtained.
reptilian heart types
cardiac muscle
heart-lung machine
hormone signaling; adipose tissue
electrocardiography
The human heart and cardiovascular system explained
Why is blood red?
How much blood is in the human body?
Hear an exposed human heart beating
Examine the ecologic importance, life cycle, and anatomical structures of the freshwater crustaceans Daphnia
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Key People

William Harvey
William Harvey
English physician
René Laënnec
French physician
Helen Brooke Taussig
American physician
Starling
Ernest Henry Starling
British physiologist
Purkinje, Jan Evangelista
Jan Evangelista Purkinje
Czech physiologist
Denton Cooley
American surgeon
Williams
Daniel Hale Williams
American physician
William Stokes
Irish physician
Christiaan Barnard
Christiaan Barnard
South African surgeon
Sir James Mackenzie
Scottish physician
Jean-Baptiste Bouillaud
French physician
Sir Dominic John Corrigan, Baronet
Irish physician
Robert Remak
German scientist
Werner Forssmann
German physician
James Bryan Herrick
American physician
Einthoven
Willem Einthoven
Dutch physiologist
André F. Cournand
American physiologist
Flint, Austin
Austin Flint
American physician
Robert Adams, drawing by an unknown artist
Robert Adams
Irish 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
Male muscle, man flexing arm, bicep curl.
Facts You Should Know: The Human Body Quiz
Male muscle, man flexing arm, bicep curl.
Facts You Should Know: The Human Body Quiz
3d illustration human heart. Adult Anatomy Aorta Black Blood Vessel Cardiovascular System Coronary Artery Coronary Sinus Front View Glowing Human Artery Human Heart Human Internal Organ Medical X-ray Myocardium
Human Organs
List
pulmonary veins and arteries, circulation, cardiovascular system, human anatomy, (Netter replacement project - SSC)
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