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Blood Cellular Elements Quiz

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Questions and Answers

What is the key role of platelets in the body?

Instrumental in blood coagulation (correct)

Transporting oxygen from lungs to tissues

Defending the body against foreign invaders

Producing red blood cells

Which type of white blood cell plays a key role in defending the body against foreign invaders such as parasites, bacteria, and viruses?

Basophils

Monocytes

Lymphocytes (correct)

Eosinophils

What is the main function of red blood cells?

Instrumental in blood coagulation

Defending the body against foreign invaders

Transporting oxygen from lungs to tissues (correct)

Producing platelets

Which cellular element has lost its nuclei by the time it enters the bloodstream?

Red blood cells Signup and view all the answers

What is responsible for controlling the production and development of blood cells?

Cytokines Signup and view all the answers

Which type of molecules are the colony-stimulating factors?

Proteins released from one cell Signup and view all the answers

What is another name for erythropoietin?

Hormone Signup and view all the answers

What are interleukins primarily responsible for?

Playing important roles in the immune system Signup and view all the answers

How are numbered interleukin names given to cytokines?

Once their amino acid sequences have been identified Signup and view all the answers

What do cytokines linked to hematopoiesis signify?

They signify the regulation of blood cell production Signup and view all the answers

What is the primary function of neutrophils, monocytes, and macrophages?

Phagocytosis Signup and view all the answers

What distinguishes basophils, eosinophils, and neutrophils from other types of white blood cells?

Their granular appearance Signup and view all the answers

Where are pluripotent hematopoietic stem cells primarily found?

In the bone marrow Signup and view all the answers

What is the remarkable ability of pluripotent stem cells?

Differentiating into many different cell types Signup and view all the answers

Which cells are responsible for specific immune responses directed against invaders?

Lymphocytes Signup and view all the answers

What is the parent cell of platelets?

Megakaryocyte Signup and view all the answers

What is the estimated frequency of uncommitted stem cells in the bone marrow?

$1$ out of every $100,000$ cells Signup and view all the answers

From where can scientists obtain uncommitted hematopoietic stem cells for replacement in patients?

Peripheral blood Signup and view all the answers