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Hematology - Blood Composition and Functions

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Hematology - Blood Composition and Functions

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Questions and Answers

What is the primary function of white blood cells in the blood?

To maintain blood in a fluid state

To transport oxygen

To defend the body against infection and disease (correct)

To regulate blood pH

What is the normal percentage of blood occupied by cells in adult males?

30-40%

60-70%

50-60%

40-50% (correct)

What is the term for the prevention of blood loss and maintenance of blood in a fluid state?

Hemostasis (correct)

Homeostasis

Erythropoiesis

Hemoglobin

What is the approximate volume of plasma in the blood?

2.5-3.5 L (A) Signup and view all the answers

What is the name of the protein in red blood cells that carries oxygen?

Hemoglobin (A) Signup and view all the answers

What is the term for the process of red blood cell production?

Erythropoiesis (D) Signup and view all the answers

What percentage of plasma proteins are albumin?

55% (A) Signup and view all the answers

Which type of globulin is synthesized by B-lymphocytes?

Gamma (D) Signup and view all the answers

What is the primary function of globulins?

To act as immunoglobulins or antibodies (B) Signup and view all the answers

During which trimester of intrauterine life does hematopoiesis occur in the liver and spleen?

Second trimester (C) Signup and view all the answers

What is the typical lifespan of a red blood cell?

120 days (A) Signup and view all the answers

What is the primary function of erythropoietin?

To stimulate replication of stem cells (C) Signup and view all the answers

What is the normal concentration of hemoglobin in adult males?

14.5-18 g/dL (A) Signup and view all the answers

What is the function of the globin part of hemoglobin?

To bind to polypeptide chains (D) Signup and view all the answers

What is the abnormal type of hemoglobin associated with sickle cell anemia?

Hb S (A) Signup and view all the answers

What is the normal percentage of Hb A1c in total hemoglobin?

5% (B) Signup and view all the answers