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Blood: Functions and Components

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Questions and Answers

What stain is commonly used to histologically examine blood films?

Leukocyte Stain

Erythrocyte Stain

Giemsa Stain (correct)

Hemoglobin Stain

What is the main function of blood?

Regulating blood pressure

Transporting oxygen and nutrients to tissues (correct)

Producing hormones

Digesting food in the body

What gives unstained red blood cells their natural color?

Hemoglobin (correct)

Iron

Plasma

Calcium

Where are old red blood corpuscles trapped for hemolysis to occur?

Spleen Signup and view all the answers

What is the average lifespan of red blood cells in adults?

120 days Signup and view all the answers

What is the normal osmotic pressure equivalent to the normal shape of RBCs?

0.9% sodium chloride (NaCl) saline solution Signup and view all the answers

What happens to RBCs when exposed to a hypertonic solution?

Crenation (shrinking) Signup and view all the answers

What is the function of the biconcave shape of RBCs?

Increases surface area for efficient gas exchange Signup and view all the answers

What is the primary cause of polycythemia?

Lack of oxygen (hypoxia) Signup and view all the answers

What are platelets derived from?

Megakaryocytes of bone marrow Signup and view all the answers