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Encyclopedia
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Heart: Encyclopedia - Heart
The heart (Latin cor) is a hollow, muscular organ that pumps blood through the blood vessels by repeated, rhythmic contractions. The term...
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Encyclopedia
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Heart: Encyclopedia Ii - Heart - The Hearts Of Other Animals
Heart - Heartbeat.
Smaller animals have faster heartbeats. This is evident within a species as well, as the young beat their hearts fas...
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Encyclopedia
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Heart: Encyclopedia Ii - Heart - The Hearts Of Other Animals
The heart of fish have only two chambers: one atrium and one ventricle. In fish, the system has only one circuit. The blood pumps through...
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Encyclopedia
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Heart: Encyclopedia Ii - Heart - The Human Heart
Heart - Early development.
The human embryonic heart (EHR) begins beating at approximately 21 days after conception, or five weeks afte...
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Encyclopedia
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Heart: Encyclopedia Ii - Heart - The Human Heart
Heart - Structure.
In the human body, the heart is normally situated slightly to the left of the middle of the thorax, underneath the s...
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Encyclopedia
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Heart: Encyclopedia Ii - Heart - Diseases And Treatments
The study of diseases of the heart is known as cardiology. Important diseases of the heart include:
Coronary heart disease is the lack o...
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Encyclopedia
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Heart: Encyclopedia Ii - Heart - First Aid
See cardiac arrest for emergencies involving the heart
If a person is encountered in cardiac arrest (no heartbeat), cardiopulmonary resus...
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