they are called gigi's tubes
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The heart chambers are not called arteries and veins. Heart chambers are atria and ventricles.
The heart has four chambers. There are two small chambers at the top of the heart called atria, and two larger chambers at the bottom called ventricles. When one or both give out, they need to replaced. Prices range on the severity of the problem.
The heart chambers are called atria and ventricles. Arteries and veins are blood vessels.
The upper chambers in the heart are called atria (singular: atrium).
The heart is divided into four chambers, the left atrium, the left ventricle, the right atrium, and the right ventricle. The two chambers in the upper portions of the heart are the atrium, and the two at the lower portions are the ventricles.