Gaseous Exchange in Humans Quiz

Hey Sophia! Can you help us out? What do you think is the primary function of the respiratory system in humans?

• To produce hormones

• To circulate blood

• To digest food

• To exchange gases

Hey Elijah, Grace, and Abigail! Can you guess what is commonly known as the voice box?

• Trachea

• Bronchi

• Larynx

• Pharynx

Hey there, students! Can you help Hannah figure out what those tiny air sacs in our lungs are called? Is it one of these?

• Capillaries

• Bronchioles

• Alveoli

• Trachea

Hey Abigail and Harper! Can you help Grace figure out which part of the respiratory system is responsible for filtering out dust from the air?

• Nasal cavity

• Larynx

• Alveoli

• Bronchi

Hey there, students! What do you think happens to the diaphragm during inhalation? Let's find out together, James, Michael, and Emma!

• It collapses

• It expands

• It contracts

• It relaxes

Hey Priya, Avery, and Hannah! Can you guess how many times humans breathe per minute when they're just chilling at rest?

• 30-35 times

• 25-30 times

• 16-20 times

• 10-12 times

Hey there, students! Have you ever wondered what the vocal cords do? Let's find out!

• To filter air

• To produce sound

• To transport oxygen

• To absorb carbon dioxide

Hey Abigail, Liam, and Olivia! Can you guess what the pleural membranes do for our lungs?

• To support the diaphragm

• To lubricate the lungs

• To filter air

• To protect the lungs

Hey there, students! Arjun, William, and Ava are curious about the human body. Can you help them out? What is the main purpose of the trachea?

• To absorb nutrients

• To filter blood

• To transport air

• To produce sound

Hey there, Luna! What happens when we breathe out? Let's find out!

• The rib muscles contract

• The diaphragm contracts

• Air is expelled

• Air is inhaled