Cardiovascular System Functions and Blood Components Quiz
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Questions and Answers

What is the approximate diameter of a red blood cell (RBC)?

  • 15 µm
  • 8 µm (correct)
  • 12 µm
  • 5 µm

Which organelle is missing in red blood cells (RBCs)?

  • Endoplasmic reticulum
  • Golgi apparatus
  • Mitochondria
  • Nucleus (correct)

Where does the production of red blood cells (erythropoiesis) primarily occur?

  • Spleen
  • Liver
  • Kidney
  • Red bone marrow (correct)

What is the average lifespan of a red blood cell in circulation?

<p>120 days (B)</p> Signup and view all the answers

What is the function of platelets in the human body?

<p>Prevent blood loss by forming clots (A)</p> Signup and view all the answers

Which of the following is NOT a type of granulocyte?

<p>Monocytes (A)</p> Signup and view all the answers

Which component contributes to the prevention of blood loss by initiating vasoconstriction?

<p>Smooth muscle damage (C)</p> Signup and view all the answers

In the chemical clotting cascade, what is the enzyme responsible for converting fibrinogen to fibrin?

<p>Thrombin (A)</p> Signup and view all the answers

What are the functions of blood in the cardiovascular system?

<p>Transportation, Regulation, Protection (A)</p> Signup and view all the answers

Which component of blood is responsible for clotting?

<p>Platelets (C)</p> Signup and view all the answers

Which type of stem cell is responsible for the production of red blood cells?

<p>Myeloid stem cell (B)</p> Signup and view all the answers

What is the function of leukocytes in the blood?

<p>Protect against infections (B)</p> Signup and view all the answers

Which type of formed element in blood is involved in oxygen transport?

<p>Erythrocytes (D)</p> Signup and view all the answers

What is the term for the liquid part of blood that contains various proteins and water?

<p>Plasma (A)</p> Signup and view all the answers

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