Download Exercise- cardiovascular system 1. The blood is red in colour

Hong Kong Institute of Vocational Education (Sha Tin)
Applied Science
Health Care Studies –Human Physiology
Exercise- cardiovascular system
1. The blood is red in colour because of the presence of
a. blood platelets
b. blood protein.
c. haemoglobin.
d. fibrinogen.
2. Which of the following blood cells is the most numerous in blood?
a. red blood cells.
b. phagocytes.
c. lymphocytes.
d. blood platelets.
3. Which of the following is/are function(s) of the red blood cells?
i. carry oxygen
ii. carry carbon dioxide
iii. carry absorbed food
a. i only.
b. iii only
c. i and ii only
d. i, ii & iii
HS Wong (Rm116) email: [email protected]
1
Hong Kong Institute of Vocational Education (Sha Tin)
Applied Science
Health Care Studies –Human Physiology
4. In adult, red blood cells are produced and destroyed respectively in
a. liver, red bone marrow.
b. red bone marrow, lymph node
c. red bone marrow, liver
d. lymph node, liver
5. The synthesis of hemoglobin requires
a. vitamin A.
b. calcium.
c. iron.
d. iodine.
6. The white blood cells are used to
a. defend the body.
b. clot the blood at wound sites.
c. carry food to body cells.
d. remove metabolic wastes.
7. White blood cells kill bacteria by
i. phagocytosis.
ii. production of antibodies.
iii. production of antibiotics.
a. i only
b. i and ii only
c. ii and iii only
d. i, ii and iii
HS Wong (Rm116) email: [email protected]
2
Hong Kong Institute of Vocational Education (Sha Tin)
Applied Science
Health Care Studies –Human Physiology
8. Which of the following statements about blood platelets is wrong?
a. are cellular fragments without nucleus.
b. for clotting of blood at wound sites.
c. produced in red bone marrow.
d. can move in and out of blood capillaries to site of bacterial infection.
9. Which vessel(s) below does/do not possess valves?
i. artery
ii. vein
iii. lymphatic vessel
a. i only
b. iii only
c. i and iii only
d. ii and iii only
10. Which of the following is not a feature of the capillary?
a. thin wall
b. large surface area
c. fast blood flow
d. in organ for exchange of gases, food and wastes.
11. Which of the following statements is only true about artery?
a. It carries blood rich in oxygen.
b. It carries blood rich in absorbed food.
c. It carries blood away from the heart.
d. It has valves to prevent backflow of blood.
HS Wong (Rm116) email: [email protected]
3
Hong Kong Institute of Vocational Education (Sha Tin)
Applied Science
Health Care Studies –Human Physiology
12. Which heart chamber below has the thickest muscular wall?
a. Left ventricle
b. Right atrium
c. Left atrium
d. Right ventricle
13. Bicuspid valve prevents backflow of blood from
a. right ventricle to right atrium.
b. Left atrium to left ventricle.
c. Right ventricle to left ventricle.
d. Left ventricle to left atrium.
14. The highest blood pressure is created in the
a. right ventricle.
b. left atrium.
c. left ventricle.
d. right atrium.
15. Right ventricle forces blood to the
a. heart.
b. Lungs.
c. Liver.
d. Kidney.
HS Wong (Rm116) email: [email protected]
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Hong Kong Institute of Vocational Education (Sha Tin)
Applied Science
Health Care Studies –Human Physiology
16. The advantage of separating the heart into right and left sides is that
a. the blood can flow through a fixed route.
b. the blood can be pumped more efficiently.
c. the deoxygenated blood will not mix with the oxygenated blood.
d. the bicuspid and tricuspid valves can maintain their proper functions.
17. Lymph does not involve in the
a. removal of bacteria.
b. clotting of blood.
c. drainage of excess tissue fluid back to blood.
d. transportation of fat.
18. Vein and lymph vessels differ by
a. valves.
b. Thickness of the muscular wall.
c. Thickness of the elastic tissue.
d. Lymph nodes.
19. The heart produces a sound (lup-dup) when it contracts and relaxes. This is caused
by the
a. flow of blood from the atria into the ventricles.
b. contraction and relaxation of the cardiac muscles.
c. flow of blood from ventricles into aorta and pulmonary artery.
d. closing of valves in the heart.
HS Wong (Rm116) email: [email protected]
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Hong Kong Institute of Vocational Education (Sha Tin)
Applied Science
Health Care Studies –Human Physiology
20. Lymph flowing is lymphatic vessel is assisted by the
i. contraction of the heart.
ii. presence of valves to prevent backflow of lymph
iii. contraction of the surrounding skeletal muscles
a. i only
b. i and ii only
c. ii and iii only
d. i, ii and iii
Answer
1.c
2. a
3. c
4. c
5. c
6. a
7. b
8.d
9. a
10. c
11. c
12. a
13. dd
14. c
15. b
16. c
17. b
18. d
19. d
20. c
HS Wong (Rm116) email: [email protected]
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