Biology STAAR (State of Texas Assessments of Academic Readiness) Practice Test

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Study for the Biology STAAR Test. Improve your skills with flashcards and multiple choice questions, each question is accompanied by hints and explanations. Prepare for success!

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What are the upper chambers of the heart called?

Atria
Ventricles
Arteries
Veins

The correct answer is: Atria

The upper chambers of the heart are known as the atria. There are two atria in the heart: the right atrium and the left atrium. These chambers are responsible for receiving blood returning to the heart from the body and lungs. The right atrium receives deoxygenated blood from the body through the superior and inferior vena cavae, while the left atrium receives oxygenated blood from the lungs via the pulmonary veins. In contrast, the ventricles, which are the lower chambers of the heart, are responsible for pumping blood out of the heart to the lungs and the rest of the body. Arteries and veins are types of blood vessels; arteries carry blood away from the heart, while veins bring blood back to the heart. Understanding the function and location of the atria is fundamental in grasping how the heart circulates blood throughout the body.