Understanding the Respiratory System

What is illustrated with #2?

• Bronchi

• Bronchioles

• Trachea

• Alveoli

What is the primary function of the respiratory system?

• To circulate blood throughout the body

• To facilitate gas exchange between the body and the environment

• To digest food and absorb nutrients

• To protect the body from pathogens

Which of the following best describes the process of gas exchange in the lungs?

• Oxygen is absorbed into the bloodstream, and carbon dioxide is released into the alveoli

• Carbon dioxide is absorbed into the bloodstream, and oxygen is released into the alveoli

• Oxygen and carbon dioxide are both absorbed into the bloodstream

• Oxygen and carbon dioxide are both released into the alveoli

Which of the following is a common respiratory disease?

• Diabetes

• Asthma

• Arthritis

• Hypertension

What is the primary role of the alveoli in the respiratory system?

• To filter out dust and pathogens from inhaled air

• To transport oxygen to the cells of the body

• To facilitate the exchange of gases between the air and the blood

• To produce mucus to trap foreign particles

Which part of the respiratory system is responsible for the actual exchange of gases?

• Trachea

• Bronchi

• Alveoli

• Diaphragm

What is the function of the diaphragm in the breathing mechanism?

• To pump blood through the lungs

• To contract and relax, allowing the lungs to expand and contract

• To filter air entering the lungs

• To produce sound during speech

Which of the following structures is NOT part of the anatomy of the lungs?

• Bronchioles

• Alveoli

• Trachea

• Aorta

How does the body primarily regulate the rate of breathing?

• By monitoring the levels of oxygen in the blood

• By monitoring the levels of carbon dioxide in the blood

• By monitoring the levels of nitrogen in the blood

• By monitoring the levels of glucose in the blood

What is the approximate surface area of the alveoli in the human lungs?

• 10 square feet

• 50 square feet

• 100 square feet

• 750 square feet