Chapter 16: Respiration and Circulation

What essential gas does air contain that every cell in the body needs?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Helium

Tags

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What does the trachea do in the respiratory system?

• Filters air

• Produces sound

• Carries air from the throat to the lungs

• Connects the nose and mouth

Where does gas exchange happen inside the lungs?

• Diaphragm

• Bronchi

• Alveoli

• Trachea

What is the role of the diaphragm in the respiratory system?

• It filters air

• It helps with breathing by moving up and down

• It stores oxygen

• It produces sound

Which organ is primarily responsible for oxygen transfer and carbon dioxide removal in the respiratory system?

• Heart

• Lungs

• Stomach

• Liver

Which part of the respiratory system is directly involved in the exchange of oxygen and carbon dioxide?

• Nasal cavity

• Pharynx

• Alveoli

• Larynx

What is the function of the bronchioles in the respiratory system?

• To produce mucus

• To carry air to the alveoli

• To filter air

• To produce sound

What does the blood carry to the body's cells?

• Carbon dioxide

• Oxygen

• Nitrogen

• Hydrogen

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What is the primary function of the circulatory system?

• To digest food

• To transport materials

• To produce energy

• To store nutrients

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How many chambers does the heart have?

• Two

• Three

• Four

• Five