This set of Human Anatomy Multiple Choice Questions & Answers (MCQs) focuses on “Blood”.
1. The blood corpuscles are of _____ kinds.
Explanation: The blood corpuscles are of 3 types. They are colored corpuscles- erythrocytes, Colorless corpuscles – Leucocytes and blood platelets.
2. Blood is stained with ___ stain.
a) Methylene blue
c) Leishman stain
d) Carbol fuchsine
Explanation: Leishman stain is used in microscopy for staining blood smears. It is generally used to differentiate and identify leucocytes malaria parasites and trypanosomas.
3. Process of formation of blood corpuscles is called _____________
Explanation: The Process of formation of blood corpuscles is called Haemopoesis. It occurs in the bone marrow.
4. Graveyard of RBC is ________
Explanation: Old red blood cells are recycled in the spleen. Platelets and white blood cells are stored there. Spleen also helps fight certain kinds of bacteria that cause pneumonia and meningitis.
5. Which leucocytes release heparin and histamine in blood?
Explanation: Basophil contains heparin which is an anticoagulant. It is a type of white blood cell.
6. Which blood cells secrets antibody?
Explanation: A Lymphocyte is a type of white blood cell that is a part of the immune system. There are 2 main types of Lymphocyte: B cells and T cells. The B cells produce antibodies that are used to attack invading bacteria, viruses and toxins.
7. Vitamin essential for blood clotting is_____________
a) Vitamin K
b) Vitamin A
c) Vitamin B
d) Vitamin C
Explanation: Vitamin K is used by the body to help blood clot. Warfarin is used to slow blood clotting. By helping the blood clot vitamin k might decrease the effectiveness of warfarin.
8. Hemoglobin is a______
a) Reproductive pigment
b) Respiratory pigment
Explanation: Hemoglobin is a protein in RBC that carries oxygen throughout the body. Lower Hemoglobin counts indicate anemia.
9. Absence of which clotting factor leads to Hemophilia-A?
a) Factor VII
b) Factor VIII
c) Factor IX
d) Factor X
Explanation: Hemophilia-A is also called factor VIII deficiency or classic hemophilia. It is genetic disorder caused by missing or defective factor VIII a clotting protein.
10. What prevents clotting of blood inside blood vessels?
Explanation: Heparin is an anticoagulant that prevents the formation of blood clots. It is used to treat blood clots in veins arteries or lung.
11. Red cell count is carried out by _________
Explanation: Haemocytometer is a device designed and used for counting blood cells. It was invented by Louis Charles Malassez.
12. Blood is five times more viscous than distilled water.
Explanation: When hematocrit raised to 60% or 70% the blood viscosity can become as great as 5 to 6 times that of water and it flow through blood vessels is greatly retarded because of increased resistance to flow.
Sanfoundry Global Education & Learning Series – Human Anatomy and Physiology.
To practice all areas of Human Anatomy and Physiology, here is complete set of 1000+ Multiple Choice Questions and Answers.