CIRCULATORY SYSTEM MULTIPLE CHOICE TEST

Below are some questions about Circulatory System which you can use when you want to improve your knowledge about the topic.

1. Which of the following is NOT transported by blood plasma?

1. Hormones
2. Digested food
3. Alveoli
4. urea

2.      Which is NOT true about white blood cells?

a.      They are smaller than red blood cells.

b.      They are capable of fighting infection.

c.       They have no definite shape.

d.      They are produced in bone marrow.

3.      What is the function of hemoglobin in red blood cells?

a.      Fight disease

b.      Clot wounds

c.       Remove carbon dioxide in the body

d.      Carry oxygen around the body

4.      Which of the following statements explains the correct gas exchange in the capillary of blood vessels?

a.      Carbon dioxide leaves the capillary to the cell, and oxygen enters the capillary.

b.      Nitrogen leaves the capillary to the cell, and carbon dioxide enters the capillary.

c.       Oxygen leaves the capillary to the cell, and carbon dioxide enters the capillary.

d.      Oxygen leaves the capillary to the cell, and nitrogen enters the capillary.

5.      It is the blood vessel that carries deoxygenated blood from the body to the right side of the heart.

a.      Pulmonary vein

b.      Vena cava

c.        Aorta

d.      Pulmonary artery

6.      It is a substance that gives color to the red blood cells.

a.      Hemoglobin

b.      Platelets

c.       Glucose

d.      Plasma

7.      When oxygen-rich blood leaves the lungs to the heart, it enters the heart through the pulmonary vein into what part of the heart?

a.      Right atrium

b.      Left atrium

c.       Right ventricle

d.      Left ventricle

8.      Which one of the following series represents the correct path of blood circulation?

a.      left atrium, left ventricle, lungs, right atrium, right ventricle, body

b.      right atrium, right ventricle, lungs, left atrium, left ventricle, body

c.       right atrium, right ventricle, lungs, left atrium, left ventricle, body

d.      right atrium, lungs, right ventricle, left atrium, body, left ventricle

9.      The liquid part of the blood after the fibrinogen is removed is

a.      Plasma

b.      Lymph

c.       Serum

d.      Puss

10.  Which of the following contains oxygenated blood in an adult human?

a.      Right atrium

b.      Pulmonary artery

c.       Pulmonary vein

d.      All of the above

11.  Materials are exchanged between the blood and the surrounding tissues in the

a.      Arteries

b.      Veins

c.       Capillaries

d.      All of the above

12.  Oxygenated blood leaves the human heart via the

a.      Pulmonary vein

b.      Pulmonary artery

c.       Vena cava

d.      Aorta

13.  Which of the following is a function of the vertebrate circulatory system?

a.      Temperature regulation

b.      Transport metabolic wastes

c.       Provide immune defense

d.      All of the above

14.  The transfer of oxygen to the body’s cells takes place in the

a.      Arteries

b.      Arterioles

c.       Capillaries

d.      Venules

15.  The main function of valves within the circulatory  system is to

a.      stop the circulation whenever necessary

b.      permit blood to circulate rapidly

c.       prevent blood from moving in the wrong dirrecton

d.      prevent blood from moving too rapidly

16.  The heart is considered to be a double pump because

a.      The atria contract then the ventricles contract, giving two pumps.

b.      The two sides of the heart beat independently, controlled by two separate mechanisms.

c.       There is a backup mechanism in the heart in case of heart attack that gives one a second chance.

d.      The two sides of the heart pump blood that never mixes.

17.  Which statement is NOT true?

a.      Valves are present between atrium and ventricle to prevent backflow of blood.

b.      Left side of the heart contains oxygenated blood.

c.       Right ventricle pumps blood to various parts of the body.

d.      Pulmonary veins carry oxygenated blood.

18.  Risk factor for high blood pressure include all of these EXCEPT

a.      Excess cholesterol

b.      Obesity

c.       Exercise

d.      Smoking

19.  Deoxygenated blood from the body returns to the heart’s

a.      Left ventricle

b.      Right atrium

c.       Left atrium

d.      Right ventricle

20.  Which of the following is NOT a negative effect of smoking to circulatory system?

a.      increased  heart  rate  and  blood  pressure

b.       coronary heart disease

c.       arteriosclerosis

d.      emphysema

21.  Which heart chamber is the most muscular?

a.      The right atrium

b.      The left atrium

c.       The right ventricle

d.      The left ventricle

22.  Which is the correct sequence of blood vessels from the heart through the body and back to the heart?

a.      Veins venules capillaries arterioles arteries

b.      Arterioles arteries capillaries veins venules

c.       Arteries arterioles veins venules capillaries

d.      Arteries arterioles capillaries venules veins

23.  If you remove red blood cells, white blood cells and platelets from blood you have

a.      salty water

b.      plasma

c.       lymph

d.      albumin

24.  Which blood constituent makes up more of the volume of blood?

a.      Red blood cell

b.      Plasma

c.       White blood cells

d.      d. Blood proteins

25.  When your physician takes your pulse, she is feeling the expansion and contraction of your

a.      Arteries or arterioles

b.      Capillaries

c.       Veins or venules

d.      Both a and c are correct

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