The Human Circulatory System How The Heart And Blood Work

2 imagenes, 8 preguntas, 1 definicion, 1 dato, 1 encuesta sobre The Human Circulatory System How The Heart And Blood Work en ARTi.

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The human circulatory system

Imágenes

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teacher An internal electrical system coordinates the heart's rhythm, sending signals that tell the chambers when to squeeze.

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teacher The heart uses four distinct chambers and one-way valves to keep oxygen-rich and oxygen-poor blood separated.

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Fun Facts

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Fun Fact

Heart power: A human heart generates enough physical energy daily to drive a truck for 20 miles.

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Quizzes

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Quiz

What is the name of the heart's natural pacemaker that generates electrical impulses?

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Quiz

Approximately how many times does an average human heart beat during a typical 70-year lifetime?

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Quiz

What unit of measurement is standard for recording blood pressure?

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Quiz

Which chamber of the human heart is responsible for pumping oxygen-rich blood to the rest of the body?

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Quiz

What type of muscle tissue makes up the walls of the human heart?

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Quiz

Which organelle is found in unusually high amounts in cardiac muscle cells to prevent fatigue?

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Quiz

How much blood does a healthy adult heart pump through the body every single day?

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Quiz

In which year did surgeon Ludwig Rehn perform the first successful surgery on a human heart?

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Glosario

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Glossary

heart (noun)
A hollow muscular organ that pumps blood through the circulatory system by rhythmic contraction and dilation. In 1628, English physician William Harvey first described how this organ pumps blood throughout the human body.

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Gossip

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Gossip

Which heart sound is more comforting?

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