Cardiovascular System Quiz: Test Your Knowledge on the Heart and Blood Vessels

Question 1

What is the muscular wall that separates the ventricles of the heart called?

Accepted Answer

Septum

Answer

Pericardium

Answer

Endocardium

Question 2

What is the primary function of haemoglobin?

Accepted Answer

To transport oxygen in the blood

Answer

To regulate blood pressure

Answer

To fight infection

Question 3

Which blood type is known as the universal donor?

Accepted Answer

O-

Answer

A+

Answer

B+

Question 4

What is the primary role of the sympathetic nervous system in cardiovascular regulation?

Accepted Answer

To increase heart rate and blood pressure

Answer

To decrease heart rate and blood pressure

Answer

To have no effect on cardiovascular function

Question 5

What is the main function of the pericardium?

Accepted Answer

To protect the heart from external forces

Answer

To regulate blood pressure

Answer

To conduct electrical impulses through the heart

Question 6

What is the name of the physiological process that leads to the formation of blood clots?

Accepted Answer

Coagulation

Answer

Haemostasis

Answer

Fibrinolysis

Question 7

Which chamber of the heart receives blood returning from the body?

Accepted Answer

Right atrium

Answer

Left atrium

Answer

Right ventricle

Answer

Left ventricle

Question 8

The pigment responsible for carrying oxygen in red blood cells is called:

Accepted Answer

Hemoglobin

Answer

Chlorophyll

Answer

Myoglobin

Answer

Cytochrome

Question 9

Which medical condition is characterized by impaired blood clotting ability?

Accepted Answer

Hemophilia

Answer

Anemia

Answer

Thrombosis

Answer

Leukemia

Question 10

Identify the hormone that elevates heart rate and blood pressure:

Accepted Answer

Adrenaline

Answer

Insulin

Answer

Testosterone

Answer

Estrogen

Question 11

The device used to measure blood pressure is known as:

Accepted Answer

Sphygmomanometer

Answer

Electrocardiogram

Answer

Stethoscope

Answer

Pulse oximeter

Question 12

The primary function of the cardiovascular system is to:

Accepted Answer

Transport oxygen and nutrients to cells and remove waste products

Answer

Maintain body temperature

Answer

Fight infections

Answer

Support the skeletal system

Question 13

Which of the following structures is responsible for pumping blood throughout the body?

Accepted Answer

Heart

Answer

Lungs

Answer

Kidneys

Answer

Liver

Question 14

Arteries are blood vessels that carry blood:

Accepted Answer

Away from the heart

Answer

Towards the heart

Answer

Within the heart

Answer

Between veins and capillaries

Question 15

Systolic pressure is the measurement of blood pressure when:

Accepted Answer

The heart contracts

Answer

The heart relaxes

Answer

Blood flows through the veins

Answer

Blood flows through the capillaries

Question 16

Which activity is recommended for improving cardiovascular fitness?

Accepted Answer

Running

Answer

Weightlifting

Answer

Yoga

Answer

Stretching

Question 17

The heart is divided into how many chambers?

Accepted Answer

Four

Answer

Two

Answer

Three

Answer

Five

Question 18

What is the name of the hormone primarily responsible for regulating blood pressure?

Accepted Answer

Aldosterone

Answer

Insulin

Answer

Epinephrine

Answer

Thyroxine

Question 19

What is the name of the condition characterized by the narrowing of arteries due to plaque buildup?

Accepted Answer

Atherosclerosis

Answer

Hypertension

Answer

Arrhythmia

Answer

Heart failure

Question 20

What is the primary function of the sinoatrial node?

Accepted Answer

Initiating the heartbeat

Answer

Transmitting electrical signals throughout the heart

Answer

Controlling blood pressure

Answer

Regulating body temperature

Question 21

What is the name of the largest artery in the human body?

Accepted Answer

Aorta

Answer

Pulmonary artery

Answer

Carotid artery

Answer

Femoral artery

Question 22

Which of the following is **not** a primary function of the cardiovascular system?

Accepted Answer

Producing red blood cells

Answer

Transporting oxygen and nutrients

Answer

Regulating body temperature

Answer

Filtering waste products from the blood

Question 23

Which blood vessel carries deoxygenated blood **away** from the heart?

Accepted Answer

Veins

Answer

Arteries

Answer

Capillaries

Answer

Lymphatic vessels

Question 24

Which chamber of the heart is responsible for pumping blood to the lungs?

Accepted Answer

Right ventricle

Answer

Right atrium

Answer

Left atrium

Answer

Left ventricle

Question 25

What is the name of the electrical impulse that triggers heart contractions?

Accepted Answer

Action potential

Answer

Systole

Answer

Diastole

Answer

Cardiac cycle

Question 26

What is the primary role of capillaries in the cardiovascular system?

Accepted Answer

To exchange oxygen and carbon dioxide with cells

Answer

To transport blood away from the heart

Answer

To regulate blood pressure

Answer

To produce blood cells

Question 27

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

Accepted Answer

Physical activity

Answer

High blood pressure

Answer

Obesity

Answer

Smoking

Question 28

What is a potential consequence of hypertension, or high blood pressure, on the cardiovascular system?

Accepted Answer

Increased risk of heart attack and stroke

Answer

Decreased heart rate

Answer

Improved blood flow to the brain

Answer

No significant impact on the cardiovascular system

Question 29

Which blood cell carries oxygen to the body's tissues?

Accepted Answer

Red blood cell

Answer

Platelet

Answer

White blood cell

Answer

Plasma

Question 30

During physical exercise, how does blood flow distribution change?

Accepted Answer

Blood flow is diverted to active muscles.

Answer

Blood flow to the brain is reduced.

Answer

Blood flow is equally distributed to all organs.

Question 31

Which blood vessel type has the thickest muscular wall, allowing it to handle higher blood pressure?

Accepted Answer

Arteries

Answer

Veins

Answer

Capillaries

Answer

Vasoconstriction

Question 32

How does the lymphatic system support the cardiovascular system?

Accepted Answer

Drains excess fluid from tissues, maintaining fluid balance.

Answer

Carries oxygen and nutrients to cells.

Answer

Regulates hormone levels in the body.

Question 33

Which of the following is **not** a well-established benefit of developing cardiovascular fitness?

Accepted Answer

Increased muscular strength and endurance

Answer

Reduced risk of chronic diseases, such as heart disease and stroke

Answer

Enhanced mood and reduced symptoms of depression and anxiety

Answer

Improved sleep quality and duration

Question 34

Which of the following accurately describes the primary function of the heart?

Accepted Answer

Pumping blood throughout the body to deliver oxygen and nutrients to tissues

Answer

Producing hormones to regulate body processes

Answer

Controlling body temperature by adjusting blood flow

Answer

Filtering waste products from the blood

Question 35

Which type of blood vessel carries oxygenated blood away from the heart and towards the body's tissues?

Accepted Answer

Artery

Answer

Arteriole

Answer

Vein

Answer

Capillary

Question 36

Which specialised structure within the heart generates the electrical impulses that coordinate its contractions?

Accepted Answer

Sinoatrial node (SA node)

Answer

Ventricles

Answer

Valves

Answer

Atrioventricular node (AV node)

Question 37

What is the primary function of haemoglobin in red blood cells?

Accepted Answer

Transporting oxygen from the lungs to tissues

Answer

Transporting glucose for energy

Answer

Regulating body temperature

Answer

Aiding in blood clotting

Question 38

In the context of blood transfusions, which blood type is considered the 'universal donor'?

Accepted Answer

O- negative

Answer

AB+ positive

Answer

B- negative

Answer

A+ positive

Question 39

Which condition is characterised by the hardening and narrowing of arteries due to plaque build-up?

Accepted Answer

Atherosclerosis

Answer

Heart failure

Answer

Coronary artery disease

Answer

Hypertension

Question 40

According to current guidelines, what is the recommended amount of moderate-intensity physical activity for adults to maintain cardiovascular health?

Accepted Answer

150 minutes per week

Answer

30 minutes per day

Answer

120 minutes per week

Answer

60 minutes per day

Question 41

Which of the following is a common symptom experienced during an angina attack?

Accepted Answer

Chest pain or discomfort

Answer

Shortness of breath

Answer

Rapid heart rate

Answer

Fatigue