Unit3_RespiratotySystem

What is the role of the respiratory system in our body?

• a. Pump blood around the body
• b. Help us breathe and obtain oxygen and get rid of Carbon dioxide
• c. Aid in digestion of food
• d. Control muscle movements

What are the two small openings in our nose called?

• a. Alveoli
• b. Bronchi
• c. Sinuses
• d. Nostrils

What part of the body connects the mouth and nose to the lungs?

• a. Trachea
• b. Stomach
• c. Small intestine
• d. Heart

What muscle is responsible for moving down and up to help us breathe?

• a. Quadriceps
• b. Diaphragm
• c. Biceps
• d. Hamstrings

4. What muscle is responsible for moving down and up to help us breathe?

• a. Quadriceps
• b. Diaphragm
• c. Biceps
• d. Hamstrings

What is the main function of the lungs when we breathe IN?

• a. Release carbon dioxide
• b. Absorb oxygen
• c. Pump blood
• d. Produce energy

Which gas passes through the lungs when we breathe OUT?

• a. Oxygen
• b. Nitrogen
• c. Carbon dioxide
• d. Hydrogen

Where does the exchange of oxygen and carbon dioxide take place in the lungs?

• a. Alveoli
• b. Bronchioles
• c. Trachea
• d. Larynx

What happens to the diaphragm when it contracts?

• a. Moves upwards (breath OUT)
• b. Stays still
• c. Moves downwards (breath IN
• d. Shrinks

What is the primary function of the nostrils?

• a. Taste food
• b. Hear sounds
• c. Help us breathe
• d. See colours