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2 days ago · heart, organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving chambers (atria) and a main pumping chamber (ventricle), as in mollusks. In fishes the heart is a folded tube, with three or four enlarged areas that correspond ...
- Myocardium
Other articles where myocardium is discussed: animal...
- Heart Summary
heart, Organ that pumps blood, circulating it to all parts...
- Human Organs Quiz
Take this anatomy quiz at encyclopedia britannica to test...
- The Human Body Quiz
The Human Body Question: In a human, the left lung has two...
- Chambered Heart
Other articles where chambered heart is discussed:...
- Diastole
diastole, in the cardiac cycle, period of relaxation of the...
- Pulmonary Circulation
pulmonary circulation, system of blood vessels that forms a...
- Heart Murmur
heart murmur, condition characterized by prolonged noises...
- Myocardium
1 day ago · Vincent van Gogh (born March 30, 1853, Zundert, Netherlands—died July 29, 1890, Auvers-sur-Oise, near Paris, France) was a Dutch painter, generally considered the greatest after Rembrandt van Rijn, and one of the greatest of the Post-Impressionists. The striking color, emphatic brushwork, and contoured forms of his work powerfully influenced ...
- The Editors of Encyclopaedia Britannica
- Vincent van Gogh was a Dutch painter, generally considered to be the greatest after Rembrandt van Rijn, and one of the greatest of the Post-Impress...
- During his 10-year artistic career, Vincent van Gogh created a vivid personal style, noted for its striking colour, emphatic brushwork, and contour...
- Vincent van Gogh’s career as an artist was extremely short, lasting only the 10 years from 1880 to 1890. Before that he had various occupations, in...
- The work of Vincent van Gogh exerted a powerful influence on the development of much modern painting, notably Expressionism, in particular on the w...
- Vincent van Gogh is remembered for both the striking colour, emphatic brushwork, and contoured forms of his art and for the turmoil of his personal...
2 days ago · Juneteenth, also known as Emancipation Day, celebrates the end of slavery in the United States. Emancipation Proclamation, 1863. In 1863, during the American Civil War, Pres. Abraham Lincoln issued the Emancipation Proclamation, which declared more than three million enslaved people living in the Confederate states to be free.
- The Editors of Encyclopaedia Britannica
19 hours ago · BRITANNICA search tips: type in "celebrations" to get a list of celebrations to explore or type in the the celebration you are looking for. World Book Online This link opens in a new window WORLD BOOK search tips : search "celebrations" to find a list of celebrations to explore.
3 days ago · Sunspots and Solar Flares. Learn about what makes our Sun a very busy place! explore; What Is the Solar Cycle? The Sun’s activity follows an 11-year cycle. Learn more about it! explore; What Is a Solar Eclipse? Learn more about what happens when the moon passes between Earth and the sun! explore; Where Does the Solar System End? The Oort ...
3 days ago · All About Earth. Since we live here, you might think we know all there is to know about Earth. Not at all, actually! We have a lot we can learn about our home planet. Learn more about Earth and all the planets in our solar system. Play. Go With the Flow! Articles, games and activities about our home planet.
3 days ago · All About Venus. The hottest planet in our solar system . explore; What Is the Weather Like on Other Planets? Each of the planets in our solar system experiences its own unique weather. explore; What Is a Transit? A transit is when one object in space crosses in front of another object in space.
