Question 1

What is the main function of the respiratory system?

Accepted Answer

Get oxygen into the body and remove carbon dioxide

Answer

Digest food

Answer

Produce energy

Answer

Pump blood

Question 2

What is the mechanical process of taking air into and out of the body called?

Accepted Answer

Breathing

Answer

Excretion

Answer

Digestion

Answer

Circulation

Question 3

Which part of the respiratory system is also known as the 'voice box'?

Accepted Answer

Larynx

Answer

Lungs

Answer

Trachea

Answer

Epiglottis

Question 4

What is the flap of tissue that seals the windpipe when you are eating called?

Accepted Answer

Epiglottis

Answer

Alveoli

Answer

Bronchi

Answer

Diaphragm

Question 5

Which structure in the respiratory system expands and contracts the rib cage during breathing?

Accepted Answer

Diaphragm

Answer

Bronchioles

Answer

Larynx

Answer

Trachea

Question 6

What is the tube that provides air flow to and from the lungs called?

Accepted Answer

Trachea

Answer

Pharynx

Answer

Bronchi

Answer

Alveoli

Question 7

Which part of the respiratory system warms, moisturizes, and filters air before it reaches the lungs?

Accepted Answer

Nasal Cavity

Answer

Bronchioles

Answer

Trachea

Answer

Larynx

Question 8

What is the chemical process that involves using oxygen to get energy from food called?

Accepted Answer

Respiration

Answer

Breathing

Answer

Circulation

Answer

Digestion

Question 9

Where does respiration take place within the body?

Accepted Answer

Cells

Answer

Brain

Answer

Stomach

Answer

Lungs

Question 10

What is the process of breathing out called?

Accepted Answer

exhaling

Answer

singing

Answer

coughing

Answer

sneezing

Question 11

Where do oxygen molecules move from your lungs into your blood?

Accepted Answer

alveoli

Answer

trachea

Answer

bronchioles

Answer

brain

Question 12

What are the tubes that air goes down after passing through the trachea?

Accepted Answer

bronchi

Answer

spinal cord

Answer

bladder

Answer

esophagus

Question 13

Where does the air enter your body when you inhale?

Accepted Answer

nose and mouth

Answer

belly button

Answer

ears and eyes

Answer

toes

Question 14

What is the gas needed by cells to turn sugar into energy?

Accepted Answer

oxygen

Answer

nitrogen

Answer

helium

Answer

carbon dioxide

Question 15

What gas is formed when your body turns sugar into energy?

Accepted Answer

carbon dioxide

Answer

oxygen

Answer

hydrogen

Answer

nitrogen

Question 16

Where do tiny blood vessels wrap around in your lungs?

Accepted Answer

alveoli

Answer

stomach

Answer

bronchi

Answer

trachea

Question 17

What is the main organ of the circulatory system?

Accepted Answer

heart

Answer

kidney

Answer

liver

Answer

lung

Question 18

Which chamber of the heart receives blood from the lungs?

Accepted Answer

left atrium

Answer

right atrium

Answer

right ventricle

Answer

left ventricle

Question 19

What do arteries do?

Accepted Answer

carry blood away from the heart

Answer

filter waste products

Answer

carry blood to the heart

Answer

exchange gases in the lungs

Question 20

What is the function of capillaries?

Accepted Answer

connect arteries and veins

Answer

store nutrients

Answer

carry blood away from the heart

Answer

carry blood to the heart

Question 21

What is the main function of white blood cells?

Accepted Answer

help the body fight disease

Answer

aid in digestion

Answer

produce hormones

Answer

transport oxygen

Question 22

Which circulation involves the flow of blood through the heart and lungs?

Accepted Answer

pulmonary circulation

Answer

systemic circulation

Answer

coronary circulation

Answer

lymphatic circulation

Question 23

What is the main function of platelets?

Accepted Answer

help the blood clot

Answer

transport oxygen

Answer

digest food

Answer

fight infections

Question 24

What is plasma mostly composed of?

Accepted Answer

water

Answer

protein

Answer

lipids

Answer

carbohydrates

Question 25

What is the role of red blood cells in the circulatory system?

Accepted Answer

deliver oxygen and remove carbon dioxide

Answer

regulate body temperature

Answer

produce antibodies

Answer

store nutrients

Question 26

What is the main artery leaving the left ventricle of the heart?

Accepted Answer

aorta

Answer

coronary artery

Answer

pulmonary artery

Answer

carotid artery

Question 27

What are the two upper chambers of the heart called?

Accepted Answer

atria

Answer

ventricles

Answer

valves

Answer

pulmonary arteries

Question 28

What is the function of veins in the circulatory system?

Accepted Answer

carry blood to the heart

Answer

filter waste products

Answer

control blood pressure

Answer

carry oxygen to cells

Question 29

Which section of circulation involves blood traveling to all body tissues and organs?

Accepted Answer

systemic circulation

Answer

coronary circulation

Answer

pulmonary circulation

Question 30

What is the main function of capillaries?

Accepted Answer

exchange of nutrients and oxygen

Answer

muscle contraction

Answer

removal of toxins

Answer

production of blood cells

Question 31

What does it mean to circulate in the context of the circulatory system?

Accepted Answer

Move around and around

Answer

Float and sink

Answer

Expand and contract

Answer

Condense and evaporate

Question 32

What is the circulatory system made up of?

Accepted Answer

Heart and blood vessels

Answer

Lungs and kidneys

Answer

Brain and nerves

Answer

Muscles and bones

Question 33

What do blood vessels do in the circulatory system?

Accepted Answer

Take blood all around the body

Answer

Pump blood to the lungs

Answer

Produce new blood cells

Answer

Store excess blood

Question 34

What important function do the kidneys perform in the circulatory system?

Accepted Answer

Clean waste and remove extra water from blood

Answer

Control body temperature

Answer

Produce blood cells

Answer

Transport oxygen to cells

Question 35

Which body parts are partners in bringing in oxygen and removing carbon dioxide from cells?

Accepted Answer

Heart and lungs

Answer

Kidneys and liver

Answer

Brain and spinal cord

Answer

Stomach and intestines

Question 36

What does blood pick up in the lungs?

Accepted Answer

Oxygen

Answer

Carbon dioxide

Answer

Glucose

Answer

Water

Question 37

What does the heart do in the circulatory system?

Accepted Answer

Pumps blood through the blood vessels

Answer

Cleans the blood

Answer

Stores oxygen

Answer

Digests food

Question 38

What are the tiny blood vessels that go to almost every cell in your body called?

Accepted Answer

Capillaries

Answer

Lymphatic vessels

Answer

Veins

Answer

Arteries

Question 39

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

Accepted Answer

Arteries

Answer

Lymphatic vessels

Answer

Veins

Answer

Capillaries

Question 40

What is the main purpose of veins in the circulatory system?

Accepted Answer

Carry blood that needs oxygen from your body to your heart

Answer

Carry oxygen-rich blood from your heart to your body

Answer

Supply nutrients to every cell in your body

Answer

Regulate blood pressure

Question 41

Where does oxygen-rich blood return to in the heart?

Accepted Answer

Left side

Answer

Back side

Answer

Front side

Answer

Right side

Question 42

What is the function of the left side of the heart?

Accepted Answer

Pumps oxygen-rich blood to all parts of the body

Answer

Pumps blood to the lungs

Answer

Receives deoxygenated blood from the vena cava

Answer

Delivers waste carbon dioxide to the body

Question 43

Where does the right side of the heart pump blood to?

Accepted Answer

Lungs

Answer

Heart

Answer

Liver

Answer

Brain

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