Circulatory System Quiz
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Questions and Answers

Which type of blood vessel has walls that are one cell thick?

  • Artery
  • Capillary (correct)
  • Vein
  • None of the above

Veins carry oxygenated blood away from the heart.

False (B)

What is the role of arteries in the circulatory system?

Arteries take blood away from the heart.

Capillaries have _____ internal diameter, and the walls are semi-permeable.

<p>tiny</p> Signup and view all the answers

What kind of blood do veins primarily carry?

<p>Deoxygenated blood (B)</p> Signup and view all the answers

Match the type of blood vessel with the correct feature:

<p>Artery = Has thick walls Capillary = Walls are semi-permeable Vein = Has valves</p> Signup and view all the answers

Blood enters arteries at a _____ pressure.

<p>high</p> Signup and view all the answers

Describe the journey of blood from the vena cava to the lungs.

<p>Vena cava → Right atrium → Tricuspid valve → Right ventricle → Pulmonary valve → Pulmonary artery → Lungs</p> Signup and view all the answers

Flashcards

Artery function

Carries oxygenated blood away from the heart to the body.

Vein function

Carries deoxygenated blood back to the heart from the body.

Capillary function

Connects arteries and veins and allows gas exchange in the body's tissues.

Artery walls

Thick walls to withstand high blood pressure, less elastic.

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Vein walls

Thin walls, carries blood at low pressure, has valves to prevent backflow.

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Capillary walls

Very thin walls, allows for efficient gas and nutrient exchange with body cells.

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Blood pressure in arteries

High pressure to carry blood throughout the body.

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Blood pressure in veins

Low pressure due to distance from heart and valves.

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