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WBC - lecture

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Questions and Answers

What are white blood cells also known as?

Platelets

Leukocytes (correct)

Red blood cells

Plasma

What is the approximate concentration of immune cells in the blood?

1-2 million/ml

3-5 million/ml

6-9 million/ml (correct)

10-15 million/ml

What is the size range of white blood cells?

1-5μm

5-10μm

10-20μm (correct)

20-30μm

What is the main function of white blood cells?

Defending against pathogens Signup and view all the answers

What do white blood cells do to worn-out cells and tissue damaged by trauma or disease?

Remove them from the body Signup and view all the answers

How do white blood cells contribute to wound healing and tissue repair?

By removing damaged cells Signup and view all the answers

What is immune surveillance?

The process of identifying and destroying abnormal cells in the body Signup and view all the answers

What types of cells do white blood cells identify and destroy through immune surveillance?

Both B and C Signup and view all the answers

Can white blood cells leave the vascular system?

Yes Signup and view all the answers

What is the function of white blood cells in defending against invading pathogens?

To engulf and destroy pathogens Signup and view all the answers

What is the approximate size range of white blood cells in micrometers?

10-20μm Signup and view all the answers

What is the concentration range of immune cells in the blood?

6-9 million/ml Signup and view all the answers

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