PSL 250 MODULE 6 EXAM UPDATED QUESTIONS AND CORRECT ANSWERS

PSL 250 MODULE 6 EXAM UPDATED QUESTIONS
AND CORRECT ANSWERS

Question:
1. Functions of the respiratory system
Answer:
Air passageway, protection from foreign particles, gas exchange, detection of odors, and sound production.

Question:
2. Oxygen during gas exchange
Answer:
Oxygen diffuses from the alveoli into the blood.

Question:
3. Carbon dioxide during gas exchange
Answer:
Carbon dioxide diffuses from the blood into the alveoli.

Question:
4. Location of the lungs
Answer:
In the thoracic cavity, on either side of the heart.

Question:
5. Lobes of the right lung
Answer:
Three: superior, middle, and inferior.

Question:
6. Lobes of the left lung
Answer:
Two: superior and inferior (smaller to accommodate the heart).

Question:
7. Membrane surrounding the lungs
Answer:
The pleura (double-layered membrane).

Question:
8. Structures of the upper respiratory tract
Answer:
Nose, nasal cavity, pharynx, and larynx.

Question:
9. Structures of the lower respiratory tract

, Answer:
Trachea, bronchi, bronchioles, terminal bronchioles.

Question:
10. Conducting zone
Answer:
Moves air from the nose to the terminal bronchioles.

Question:
11. Respiratory zone
Answer:
Structures where gas exchange occurs: respiratory bronchioles, alveolar ducts, alveoli.

Question:
12. Pathway air follows to reach the alveoli
Answer:
Nose ’ Nasal cavity ’ Larynx ’ Trachea ’ Bronchi ’ Bronchioles ’ Terminal bronchiole ’ Respiratory
bronchiole ’ Alveolar duct ’ Alveoli.

Question:
13. Right bronchus
Answer:
More likely to receive aspirated objects because it is larger and more vertical (straighter).

Question:
14. Pharynx
Answer:
Throat

Question:
15. Larynx
Answer:
Voice box

Question:
16. Trachea
Answer:
Windpipe

Question:
17. Functions of the nasal cavity
Answer:
Warm, clean, and humidify incoming air.

Question:
18. Nasal conchae