ANE 742 Immunology Review Questions
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Questions and Answers

What percentage of the blood volume is composed of fluid?

  • 45%
  • 55% (correct)
  • 40%
  • 50%

What is the approximate percentage of red blood cells (RBCs) in the blood volume?

  • 40%
  • 50%
  • 55% (correct)
  • 45%

Which of the following blood components makes up the smallest percentage of the blood volume?

  • Platelets
  • Plasma
  • Red blood cells (RBCs)
  • White blood cells (WBCs) (correct)

What is the combined percentage of red and white blood cells in the blood volume?

<p>90.5% (C)</p> Signup and view all the answers

Which of the following statements is true about the blood volume composition?

<p>The cellular portion is greater than the fluid portion. (C)</p> Signup and view all the answers

What is the relative proportion of red blood cells to white blood cells in the blood volume?

<p>RBCs are 5 times more abundant than WBCs (B)</p> Signup and view all the answers

What can be inferred about the density of red blood cells compared to the fluid component of blood?

<p>RBCs are denser than the fluid component (C)</p> Signup and view all the answers

What is the consequence of a significant increase in the proportion of white blood cells in the blood volume?

<p>Increased blood viscosity (D)</p> Signup and view all the answers

What is the likely effect of a decrease in the fluid component of blood on the ratio of red to white blood cells?

<p>The ratio of RBCs to WBCs increases (D)</p> Signup and view all the answers

What is the implication of the relative proportions of red and white blood cells in the blood volume on immune function?

<p>The ratio of RBCs to WBCs influences immune cell trafficking (A)</p> Signup and view all the answers

Flashcards

What is the percentage of fluid in blood volume?

The fluid component of blood comprises approximately 55% of the total blood volume.

What percentage of blood is composed of red blood cells?

Red blood cells, also known as erythrocytes, make up about 45% of the total blood volume.

Which blood component is present in the lowest percentage?

White blood cells, also called leukocytes, make up the smallest percentage of blood volume.

What is the combined percentage of red and white blood cells?

Red and white blood cells collectively make up about 90.5% of the total blood volume.

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Which portion of blood volume is greater, cellular or fluid?

The cellular portion of blood, containing red and white blood cells, is larger than the fluid portion, representing 45% and 5% respectively.

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How much more abundant are red blood cells than white blood cells?

Red blood cells are five times more abundant than white blood cells in blood volume.

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Compare the density of red blood cells to blood fluid?

Red blood cells are denser than the fluid component of blood due to their high protein content.

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What is the consequence of a high percentage of white blood cells?

A significant increase in the proportion of white blood cells increases blood viscosity, making it thicker.

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How does a decrease in blood fluid affect the red/white cell ratio?

A decrease in the fluid component of blood concentrates red blood cells, increasing their ratio to white blood cells.

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How does the red/white cell ratio affect immune function?

The ratio of red blood cells to white blood cells influences the efficiency of immune cell trafficking, which is crucial for immune responses.

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Study Notes

Blood Composition

  • Blood volume is composed of 45% fluid.
  • Red blood cells (RBCs) make up 45% of blood volume.
  • White blood cells (WBCs) are a minor component of blood volume, with a significantly smaller percentage than RBCs.

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Immunology Review Questions For Exam 1.docx

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Review questions for ANE 742 Immunology course, covering various concepts and topics related to immunology.

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