Circulatory

Question 1

The normal temperature of the human body is approximately:

Answer 1

37°c

Question 2

Which one of the following components is not present in tissue fluid?

Answer 2

Red blood cells

Question 3

Which chemical is not transported in the liquid part of the blood?

Answer 3

Fibrin

Question 4

The percentage of water in blood plasma is:

Answer 4

90%

Question 5

Which component of blood transports oxygen?

Answer 5

Erythrocytes

Question 6

Which of the following is not a component of human blood?

Answer 6

Fibroblasts

Question 7

The cells responsible for the defence of the body are:

Answer 7

White blood cells

Question 8

The blood cells which do not have a nucleus are:

Answer 8

Erythrocytes

Question 9

Blood cells are formed in the:

Answer 9

Bones

Question 10

The destruction of red blood cells takes place in the:

Answer 10

Liver

Question 11

After birth, red blood cells are made in the:

Answer 11

Bone marrow

Question 12

Which one of the following minerals is used to produce hemoglobin?

Answer 12

Iron

Question 13

The function of white blood cells is to:

Answer 13

Destroy bacteria

Question 14

The name of the substances which stimulate the production of antibodies in the blood is called:

Answer 14

Antigens

Question 15

The component of blood responsible for the manufacture of antibodies is:

Answer 15

Lymphocytes

Question 16

The substances produced in the body which destroy or neutralise foreign substances are called:

Answer 16

Antibodies

Question 17

Defence against antigens does not take place by:

Answer 17

Erythrocytes

Question 18

The component of blood mostly concerned with the control of infection is:

Answer 18

White blood cells

Question 19

The component of blood which plays an important role in clotting is:

Answer 19

Platelets

Question 20

The primary function of thrombocytes is to:

Answer 20

Play a role in blood clotting

Question 21

Which vitamin causes an increase in clotting time of blood when it’s deficient?

Answer 21

K

Question 22

When blood clots, the soluble substance which becomes insoluble is called:

Answer 22

Fibrinogen

Question 23

The following processes occur after blood has come into contact with damaged tissue:
1. Thrombokinase produced by platelets
2. Thrombin combines with fibrinogen
3. Production of a fibrin net
4. Calcium and prothrombin combined
The correct order in which they appear is:

Answer 23

1,4,2,3

Question 24

Calcium in the blood is necessary for:

Answer 24

Blood coagulation

Question 25

Deoxygenated blood enters the heart by the:

Answer 25

Right atrium

Question 26

The name of the cavity in which the heart lies is called:

Answer 26

Pericardial cavity

Question 27

When the ventricles of the heart contract the:

Answer 27

Aortic and pulmonary valves open

Question 28

Blood is prevented from returning to the ventricles after they have completed their contractions by the:

Answer 28

Semilunar valves

Question 29

Which one of the following chambers of the heart pumps blood to the lungs?

Answer 29

Right ventricle

Question 30

The average rate of heart beat of a healthy adult in rest in number of beats per minute is:

Answer 30

70

Question 31

The right ventricle and the left atrium are connected by the:

Answer 31

Pulmonary circulation

Question 32

The blood vessel that collects blood from the digestive organs is the

Answer 32

Hepatic portal vein

Question 33

The blood vessel which has thick muscular walls and carries deoxygenated blood is the:

Answer 33

Pulmonary artery

Question 34

The right ventricle of the heart:

Answer 34

Is the beginning of the pulmonary circulation

Question 35

After leaving the right ventricle, blood is pumped to the:

Answer 35

Pulmonary artery

Question 36

A characteristic that cannot be applied to veins is that they:

Answer 36

Always carry blood away from the heart

Question 37

An incorrect statement about arteries is that they:

Answer 37

Have valves

Question 38

A characteristic of all arteries(except pulmonary arteries)is that they:

Answer 38

Transport blood rich in oxygen

Question 39

Arteries:

Answer 39

Have an elastic wall

Question 40

The muscle tissue located within the walls of blood vessels is:

Answer 40

Smooth muscle tissue

Question 41

The extremely thin walls of capillaries are made of:

Answer 41

Only endothelium

Question 42

Tissue fluid leaves the capillaries by:

Answer 42

Diffusion

Question 43

The function of capillaries is not for the purpose of the:

Answer 43

Destruction of antigens

Question 44

The lymphatic vessels that gathers most of the lymph is the:

Answer 44

Thoracic duct

Question 45

The liquid which carries dissolved substances from capillaries to cells and back is:

Answer 45

Tissue fluid

Question 46

Macrophages and lymphocytes that filter lymph are situated in the:

Answer 46

Lymph nodes

Question 47

Fat is transported through the circulatory system by:

Answer 47

Lymph

Question 48

The fluid between the cells is driven along by:

Answer 48

Pressure from the contracting muscles around them

Question 49

The location of the spleen is:

Answer 49

To the left of the body under diaphragm

Question 50

After leaving the left ventricle, blood flows from the heart to the:

Answer 50

Aorta

Question 51

The name of the vessel taking blood from the stomach to the liver is called the:

Answer 51

Hepatic portal vein

Question 52

The blood vessel which discharges into the right atrium (auricle) is the:

Answer 52

Inferior vena cava

Question 53

The blood vessel not connected to the liver is the:

Answer 53

Inferior vena cava

Question 54

Which one of the following statements is incorrect?

Answer 54

The blood vessel connecting the aorta to each kidney is the renal vein

Question 55

Which one of the following statements is incorrect? Blood flows:-

Answer 55

From the aorta to the head in the jugular vein

Question 56

Which one of the following statements about blood is Incorrect?:

Answer 56

Takes urea from the kidneys to the liver

Question 57

Blood is carried to the liver through the:

Answer 57

Hepatic artery and hepatic portal vein

Question 58

The name of the vessel that takes blood from the liver to the vena cava is the:

Answer 58

Hepatic vein