24 Questions
What is the primary function of antibodies in the blood?
To destroy pathogenic substances
What is the main component of blood that helps to regulate pH levels?
Plasma
Which of the following is NOT a function of blood?
Production of hormones
What is the term for the process by which blood helps to regulate body temperature?
Thermoregulation
What is the approximate volume of blood in an average adult?
5 liters
What is the term for the suspended substances found in plasma?
Colloidal solution
What is the primary function of hemoglobin in red blood cells?
To carry oxygen from the lungs to the tissues
What is the approximate percentage of hemoglobin in red blood cells?
34%
Which type of protein is responsible for maintaining osmotic balance in the blood?
Albumin
What is the average concentration of hemoglobin in 100 ml of male blood?
16 gm
What is the primary function of platelets in the blood?
To stop bleeding through clotting mechanism
What is the approximate diameter of a red blood cell?
7.8 µm
What is the term for the ratio between plasma and cellular elements in blood?
Hematocrit
Where are nucleated red blood cells produced in the early weeks of embryonic life?
Yolk sac
What is the name of the anemia caused by the loss of function of bone marrow?
Bone marrow aplasia
What is the term for the production of all types of blood cells?
Hemopoiesis
What is the name of the waste product that is excreted by the kidneys?
Urea
What is the term for a condition where the percentage of red blood cells is above 45%?
Polycythemia
What is the primary cause of Erythroblastosis fetalis?
Maternal antibodies attacking red cells in the baby
Which disease is also known as Mediterranean anemia?
Thalasemia
What is the average lifespan of red blood cells in the circulatory system?
120 days
What is the primary function of cytoplasmic enzymes in red blood cells?
Metabolizing glucose to form ATP
What is the role of ATP in red blood cells?
Maintaining membrane transport of ions
Why do red blood cells become more fragile over time?
Due to a decrease in their metabolic rate
This quiz covers the basics of hematology, specifically the functions of blood and its role in the circulatory system. Topics include transportation, protection, and regulation of bodily functions.
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