Questions and Answers
What function do capillaries serve in the cardiovascular system? (Select all that apply)
All cardiovascular diseases are caused by poor lifestyle choices.
False
Arteries carry oxygen-rich blood to capillaries.
True
The aorta pumps blood out of the heart to the rest of the body.
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Once entering the nose, air moves through both the pharynx and larynx.
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Air is warmed and moistened as it moves through both the mouth and nasal passages.
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In the human body, the larynx is attached to the trachea.
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White blood cells prevent the loss of blood by causing clotting.
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The human cardiovascular system is considered closed because __________.
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The right ventricle transports oxygenated blood to the lungs.
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Each lung is fed oxygen by a separate bronchus.
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Nutrients and waste both enter and leave cells through a process called __________.
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Your friend Amanda suffers from a condition that reduces her blood's ability to carry oxygen. Which of the following is the name of that condition?
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Both the heart and arteries contract to pump blood throughout the body.
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What percentage of blood is made up of plasma?
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Study Notes
Cardiovascular System Functions
- Capillaries play a crucial role in helping to control body temperature.
- Arteries are responsible for carrying oxygen-rich blood to capillaries.
- The aorta is the primary vessel that pumps blood out of the heart to supply the body.
Respiratory System Pathway
- Air enters the body through the nose and subsequently moves through the pharynx and larynx.
- Both mouth and nasal passages serve to warm and moisten the inhaled air.
- The larynx is anatomically connected to the trachea, facilitating air passage to the lungs.
Blood Composition and Function
- White blood cells do not cause clotting; their main role is to combat infections.
- The cardiovascular system is termed 'closed' as blood circulates without entering or leaving the system through openings.
- The right ventricle is responsible for transporting deoxygenated blood to the lungs, not oxygenated blood.
Lung Anatomy
- Each lung receives oxygen supply through separate bronchi.
Cellular Processes
- Cells utilize diffusion for the exchange of nutrients and waste products.
Conditions Affecting Blood Oxygenation
- Anemia is a condition that reduces the blood's capacity to carry oxygen, often characterized by low hemoglobin levels.
Heart and Artery Functionality
- Both the heart and arteries synchronize their contractions to ensure effective blood circulation throughout the body.
Blood Plasma Composition
- Plasma constitutes approximately 55% of total blood volume, serving as the liquid medium for blood cells and nutrients.
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Description
Test your knowledge of the cardiovascular system with these flashcards. Each card provides a question on key functions and facts of blood vessels and cardiovascular diseases. Perfect for reviewing essential concepts for your PE exam.
