Blood and Circulatory System Health Quiz

Challenge yourself with questions on blood components, heart functions, and circulatory health. How well do you know hematology?

#1

Which of the following is not a component of blood?

Red blood cells
Platelets
White blood cells
Adrenaline
#2

What is the primary function of red blood cells (RBCs)?

Transport oxygen
Fight infections
Clot blood
Produce antibodies
#3

What is the function of platelets in the blood?

Transport oxygen
Fight infections
Clot blood
Produce antibodies
#4

What is the term for the upper chambers of the heart?

Atria
Ventricles
Valves
Septum
#5

Which blood cells are responsible for the immune response?

Red blood cells
White blood cells
Platelets
Plasma
#6

What is the main function of hemoglobin in the blood?

Transport carbon dioxide
Transport oxygen
Clot blood
Fight infections
#7

Which chamber of the heart receives oxygen-rich blood from the lungs?

Right atrium
Left atrium
Right ventricle
Left ventricle
#8

What is the medical term for high blood pressure?

Hypotension
Hypertension
Arrhythmia
Bradycardia
#9

Which blood vessel carries oxygen-rich blood away from the heart to the body?

Pulmonary artery
Pulmonary vein
Aorta
Vena cava
#10

What is the average resting heart rate for adults?

60-70 beats per minute
80-100 beats per minute
100-120 beats per minute
120-140 beats per minute
#11

Which organ produces most of the plasma proteins found in blood?

Liver
Kidneys
Pancreas
Spleen
#12

Which blood vessels carry deoxygenated blood back to the heart?

Arteries
Veins
Capillaries
Venules
#13

Which blood type is considered the universal recipient?

Type O
Type A
Type AB
Type B
#14

Which of the following is not a risk factor for cardiovascular disease?

Smoking
High cholesterol
Regular exercise
Obesity
#15

What is the name of the condition where there is a build-up of fatty deposits in the arteries?

Atherosclerosis
Hemophilia
Leukemia
Embolism
#16

What is the medical term for a blood clot that forms within a blood vessel and obstructs the flow of blood?

Thrombus
Embolism
Hematoma
Aneurysm
#17

Which hormone regulates the amount of calcium in the blood?

Insulin
Cortisol
Thyroxine
Parathyroid hormone
#18

Which of the following is a function of blood plasma?

Transport of gases
Defense against pathogens
Clotting of blood
Transport of nutrients

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