Questions and Answers
The human circulatory system transports ______ and nutrients through the blood to the body cells.
oxygen
The heart consists of four chambers: two upper called ______ and two lower called ventricles.
atria
Arteries carry blood that is rich in oxygen and nutrients from the heart to body ______.
cells
Veins carry blood that is rich in carbon dioxide and low in ______ and nutrients back to the heart.
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Blood capillaries are tiny blood ______ that connect arteries to veins.
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Study Notes
Human Circulatory System
- Transports oxygen and nutrients through blood to body cells.
- Comprises the heart and blood vessels.
Heart
- Functions as a pump, circulating blood throughout the body.
- Comprised of four chambers:
- Two upper chambers called atria.
- Two lower chambers called ventricles.
Blood Vessels
- Three primary types of blood vessels:
-
Arteries:
- Transport oxygen-rich and nutrient-rich blood from the heart to body cells.
-
Veins:
- Carry carbon dioxide-rich and low-oxygen, low-nutrient blood back to the heart before sending it to the lungs for reoxygenation.
-
Capillaries:
- Tiny blood vessels connecting arteries to veins, facilitating nutrient and gas exchange at the cellular level.
-
Arteries:
Blood Movement
- Blood flows in one direction through arteries and veins, ensuring efficient circulation.
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Description
This quiz explores the fundamentals of the human circulatory system, detailing its components, including the heart and blood vessels. Participants will learn about the functions of arteries, veins, and the overall role of the circulatory system in transporting oxygen and nutrients to body cells.
