The Circulatory System: The Body's Transport Network

Question 1

What part of the circulatory system acts as the pump for blood?

Accepted Answer

Heart

Answer

Arteries

Answer

Veins

Answer

Capillaries

Question 2

Which of the following is NOT a blood vessel that carries blood in the circulatory system?

Accepted Answer

Lymphatic vessel

Answer

Artery

Answer

Vein

Answer

Capillary

Question 3

How does the circulatory system contribute to the body's waste removal process?

Accepted Answer

By carrying waste to the kidneys for filtering

Answer

By converting waste into energy

Answer

By storing waste in the liver

Answer

By releasing waste through sweat

Question 4

Which of these is NOT a major type of cardiovascular disease?

Accepted Answer

Anemia

Answer

Arrhythmia

Answer

Heart attack

Answer

Stroke

Question 5

Which chamber of the heart receives blood that has been enriched with oxygen in the lungs?

Accepted Answer

Left atrium

Answer

Right atrium

Answer

Left ventricle

Answer

Right ventricle

Question 6

What is the term for the rhythmic contractions of the heart muscle that pump blood throughout the circulatory system?

Accepted Answer

Systole

Answer

Diastole

Answer

Pulse

Answer

Respiration

Question 7

Which hormone is released by the body in response to blood loss, causing blood vessels to narrow and increasing blood pressure?

Accepted Answer

Epinephrine

Answer

Insulin

Answer

Serotonin

Answer

Dopamine

Question 8

Which type of blood cell is part of the body's immune system and helps defend against infection?

Accepted Answer

White blood cells

Answer

Red blood cells

Answer

Platelets

Answer

Plasma cells

Question 9

What is the name of the process by which blood forms clots to stop bleeding?

Accepted Answer

Coagulation

Answer

Fibrosis

Answer

Hemolysis

Answer

Agglutination

Question 10

Which part of the brain is responsible for controlling the heart rate and blood pressure?

Accepted Answer

Medulla oblongata

Answer

Cerebellum

Answer

Hypothalamus

Answer

Cerebral cortex

Question 11

What is the name of the condition in which the arteries become narrowed due to a buildup of fatty deposits, which can reduce blood flow and increase the risk of cardiovascular problems?

Accepted Answer

Atherosclerosis

Answer

Thrombosis

Answer

Embolism

Answer

Hypertension

Question 12

Which blood vessel carries blood away from the heart that has less oxygen?

Accepted Answer

Vein

Answer

Artery

Answer

Capillary

Answer

Lymph Vessel

Question 13

Which of the following is NOT a primary function of the circulatory system in humans?

Accepted Answer

Producing hormones

Answer

Transporting oxygen and nutrients

Answer

Removing waste products from cells

Answer

Regulating body temperature

Question 14

Which type of blood vessel carries oxygen-rich blood away from the heart?

Accepted Answer

Arteries

Answer

Veins

Answer

Capillaries

Answer

Lymphatics

Question 15

What is the name of the muscular organ that pumps blood throughout the body?

Accepted Answer

Heart

Answer

Lungs

Answer

Liver

Answer

Stomach

Question 16

Which part of the blood is responsible for carrying oxygen to body tissues?

Accepted Answer

Red blood cells

Answer

Plasma

Answer

White blood cells

Answer

Platelets

Question 17

What is the process called when gases are exchanged between capillaries and body tissues?

Accepted Answer

Diffusion

Answer

Respiration

Answer

Circulation

Answer

Transpiration

Question 18

Which type of blood pressure is measured when the heart is relaxed?

Accepted Answer

Diastolic pressure

Answer

Systolic pressure

Answer

Pulse pressure

Answer

Mean arterial pressure

Question 19

What is the name of the condition where arteries become narrowed due to the accumulation of fatty deposits?

Accepted Answer

Atherosclerosis

Answer

Hypertension

Answer

Anemia

Answer

Thrombosis

Question 20

Which hormone helps regulate blood volume and blood pressure?

Accepted Answer

Antidiuretic hormone

Answer

Epinephrine

Answer

Thyroxine

Answer

Insulin

Question 21

What is the approximate resting heart rate of a healthy adult?

Accepted Answer

70-80 beats per minute

Answer

50-60 beats per minute

Answer

90-100 beats per minute

Answer

110-120 beats per minute

Question 22

Which part of the circulatory system is responsible for filtering waste products from the blood?

Accepted Answer

Kidneys

Answer

Heart

Answer

Lungs

Answer

Liver

Question 23

What is the name of the network of tiny blood vessels that supply nutrients and oxygen to cells?

Accepted Answer

Capillaries

Answer

Veins

Answer

Arteries

Answer

Lymphatics

Question 24

Which component is NOT part of the circulatory system?

Accepted Answer

Lungs

Answer

Heart

Answer

Blood vessels

Answer

Blood

Question 25

What is the main function of the heart in the circulatory system?

Accepted Answer

To pump blood throughout the body

Answer

To oxygenate blood

Answer

To filter blood

Answer

To produce red blood cells

Question 26

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

Accepted Answer

Arteries

Answer

Veins

Answer

Capillaries

Answer

Lymphatic vessels

Question 27

What is the pigment in red blood cells responsible for carrying oxygen?

Accepted Answer

Haemoglobin

Answer

Chlorophyll

Answer

Melanin

Answer

Carotenoid

Question 28

What is the name of the process by which gases are exchanged between capillaries and tissues?

Accepted Answer

Diffusion

Answer

Osmosis

Answer

Active transport

Answer

Filtration

Question 29

Which specialised cells line the blood vessels?

Accepted Answer

Endothelial cells

Answer

Smooth muscle cells

Answer

Cardiac cells

Answer

Fibroblasts

Question 30

Which animal group possesses a closed circulatory system?

Accepted Answer

Fish

Answer

Earthworms

Answer

Insects

Answer

Butterflies

Question 31

The heart's chamber that gets oxygenated blood from the lungs is the:

Accepted Answer

Left atrium

Answer

Right atrium

Answer

Left ventricle

Answer

Right ventricle

Question 32

Which type of blood vessel carries blood away from the heart?

Accepted Answer

Arteries

Answer

Veins

Answer

Capillaries

Answer

Venules

Question 33

What blood component carries oxygen?

Accepted Answer

Red blood cells

Answer

Plasma

Answer

White blood cells

Answer

Platelets

Question 34

The sinoatrial node's (SAN) function in the circulatory system is to:

Accepted Answer

Trigger electrical impulses for heartbeats

Answer

Contract the heart muscle

Answer

Control blood pressure

Answer

Transport nutrients and oxygen

Question 35

Blood clots in arteries are known as:

Accepted Answer

Thrombosis

Answer

Atherosclerosis

Answer

Hemophilia

Answer

Anemia

Question 36

The difference between systemic and pulmonary circulation is that:

Accepted Answer

Systemic circulation carries oxygenated blood to the body, while pulmonary circulation carries deoxygenated blood to the lungs.

Answer

Systemic circulation carries deoxygenated blood to the body, while pulmonary circulation carries oxygenated blood to the lungs.

Answer

Both systemic and pulmonary circulation carry oxygenated blood to the body.

Answer

Both systemic and pulmonary circulation carry deoxygenated blood to the body.

Question 37

Capillaries play a crucial role in the circulatory system by:

Accepted Answer

Facilitating the exchange of nutrients and oxygen between blood and tissues

Answer

Transporting blood back to the heart

Answer

Regulating blood pressure

Answer

Storing blood

Question 38

Which component of the circulatory system pumps blood around the body?

Accepted Answer

Heart

Answer

Arteries

Answer

Veins

Answer

Capillaries

Question 39

What is the main purpose of blood vessels in the circulatory system?

Accepted Answer

To transport blood

Answer

To regulate temperature

Answer

To produce blood cells

Answer

To store nutrients

Question 40

Which type of blood vessel carries oxygenated blood away from the heart?

Accepted Answer

Arteries

Answer

Veins

Answer

Capillaries

Answer

Lymphatic vessels

Question 41

What is the name of the smallest blood vessel where exchange of nutrients and waste occurs?

Accepted Answer

Capillaries

Answer

Arterioles

Answer

Venules

Answer

Aorta

Question 42

Which blood component is responsible for transporting oxygen?

Accepted Answer

Red blood cells

Answer

White blood cells

Answer

Platelets

Answer

Plasma

Question 43

What is the role of plasma in the blood?

Accepted Answer

To transport nutrients and hormones

Answer

To regulate blood pH

Answer

To fight infection

Answer

To store energy

Question 44

Which of the following is the correct path of blood flow through the heart?

Accepted Answer

Right atrium, right ventricle, left atrium, left ventricle

Answer

Left ventricle, left atrium, right atrium, right ventricle

Answer

Left atrium, left ventricle, right ventricle, right atrium

Answer

Right ventricle, right atrium, left ventricle, left atrium

Question 45

What is the term for the rhythmic beating of the heart?

Accepted Answer

Cardiac cycle

Answer

Pulse

Answer

Electrocardiogram

Answer

Systole

Question 46

What is the primary function of the circulatory system?

Accepted Answer

To transport oxygen and nutrients throughout the body

Answer

To fight off infections

Answer

To regulate body temperature

Question 47

Which of the following is NOT a component of the circulatory system?

Accepted Answer

Bones

Answer

Blood vessels

Answer

Blood

Answer

Heart

Question 48

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

Accepted Answer

Aorta

Answer

Carotid artery

Answer

Pulmonary artery

Answer

Femoral artery

Question 49

What is the function of valves in veins?

Accepted Answer

To prevent blood from flowing backward

Answer

To increase blood pressure

Answer

To regulate blood flow to organs

Question 50

Which of the following blood cells is responsible for carrying oxygen?

Accepted Answer

Red blood cells

Answer

Platelets

Answer

White blood cells

Question 51

What is the term for high blood pressure?

Accepted Answer

Hypertension

Answer

Hypotension

Answer

Bradycardia

Answer

Tachycardia

Question 52

Which of the following is a risk factor for heart disease?

Accepted Answer

Smoking

Answer

Low stress levels

Answer

Regular exercise

Answer

Healthy diet

Question 53

What is the name of the condition in which the heart fails to pump blood effectively?

Accepted Answer

Heart failure

Answer

Stroke

Answer

Atherosclerosis

Answer

Arrhythmia

Question 54

What is the purpose of the sinoatrial (SA) node in the circulatory system?

Accepted Answer

To generate the electrical impulse that triggers heart contractions

Answer

To control blood flow to the lungs

Answer

To regulate blood pressure