Questions and Answers
The aorta pumps blood out of the heart to the rest of the body.
True
The right ventricle transports oxygenated blood to the lungs.
False
All cardiovascular diseases are caused by poor lifestyle choices.
False
In the human body, the larynx is attached to the trachea.
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What percentage of blood is made up of plasma?
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What function do capillaries serve in the cardiovascular system?
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Arteries carry oxygen-rich blood to capillaries.
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Each lung is fed oxygen by a separate bronchus.
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Once entering the nose, air moves through both the pharynx and larynx.
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Both the heart and arteries contract to pump blood throughout the body.
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Study Notes
Cardiovascular System Highlights
- The aorta is the main artery that pumps oxygenated blood from the heart to the entire body.
- The right ventricle does not transport oxygenated blood; it pumps deoxygenated blood to the lungs for oxygenation.
- While lifestyle choices can impact cardiovascular health, not all cardiovascular diseases are solely attributed to them, indicating a combination of genetic and environmental factors.
Respiratory System Insights
- The larynx, also known as the voice box, is directly connected to the trachea, serving as a passageway for air.
- Each lung receives oxygen through a separate bronchus, highlighting the dual respiratory tract structure.
- Air enters through the nose and subsequently passes through the pharynx and larynx before reaching the lungs.
Blood Composition and Functions
- Plasma constitutes approximately 55% of total blood volume, making it the largest component of blood.
- Capillaries play a crucial role in regulating body temperature through their ability to control blood flow and exchange heat, rather than merely functioning as a return route to the lungs or for replacing old blood cells.
- Arteries transport oxygen-rich blood to capillaries, which are the smallest blood vessels, facilitating oxygen and nutrient exchange with tissues.
Cardiovascular Dynamics
- Both the heart and arteries actively contract to pump blood throughout the circulatory system, ensuring efficient blood flow to all body organs and tissues.
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Description
Test your knowledge of the cardiovascular and respiratory systems with these flashcards. This quiz covers key components, functions, and misconceptions about these vital systems in the human body.
