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Heart basics

Anatomy and physiology of the heart — first-year essentials.

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Question 1 of 5

How many chambers does the human heart have?

Question 2 of 5

What does an ECG record?

Question 3 of 5

What is the heart's natural pacemaker?

Question 4 of 5

Which vessel carries deoxygenated blood from the right ventricle to the lungs?

Question 5 of 5

Normal adult resting heart rate range?

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