Cardiovascular System: The body system composed of the heart, blood vessels, and blood, responsible for transporting oxygen, nutrients, hormones, and waste products throughout the body.
Heart: A muscular organ that functions as a pump, creating the pressure needed to circulate blood through the body via its four chambers—right atrium, right ventricle, left atrium, and left ventricle.
Blood Vessels: A network of arteries, veins, and capillaries that carry blood. Arteries transport oxygen-rich blood away from the heart, while veins return oxygen-poor blood back to the heart.
Pulmonary Circulation: The pathway where the right side of the heart pumps oxygen-poor blood to the lungs for oxygenation and removal of carbon dioxide.
Systemic Circulation: The pathway where the left side of the heart pumps oxygenated blood to body tissues and returns deoxygenated blood to the heart.
1. What is the primary role of different blood vessel types in circulation?
2. Which of the following best describes the role of the left ventricle in heart anatomy?
3. What does the cardiovascular system refer to?
Cardiovascular system — function?
Transports oxygen, nutrients, and waste.
Heart chambers — roles?
Pump blood; right for deoxygenated, left for oxygenated.
Blood vessel types — differences?
Arteries carry blood away; veins return blood; capillaries exchange gases.
Cardiovascular System — components?
Heart, blood vessels, blood.
Heart — chambers?
Right atrium, right ventricle, left atrium, left ventricle.
Blood Vessel Types — function?
Arteries: carry blood away; veins: carry blood to heart.
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