BIOD 151 Module 2
1. The lungs are symmetrical.
Ans: False
2. What is hilum?
Ans: The "root" of the lung.
3. What color is healthy lung tissue?
Ans: peachy/pink color
4. Where can we find pleurae?
Ans: Membranes that surround the lungs and the cavity around the lungs
5. What is visceral pleura?
Ans: layer of pleura that faces/covers the lung
6. What is parietal pleura?
Ans: outer layer of pleura lying closer to the ribs and chest wall that covers the surface around the lungs
7. What is pleural space/cavity?
Ans: Space between the visceral and parietal pleural membranes (small) typically empty but has a small
amount of fluid that allows for frictionless breathing when diseased, this space can fill with air or fluid
8. What is the function of the pleurae?
Ans: the pleurae help reduce friction and help with inflation and inhalation compartmentalize, protect,
and lubricate the lungs
9. The three main functions of the respiratory system
Ans: 1) air conduction
2) air filtration
3) exchange of gases aka respiration
10. Respiratory systems have roles in which other things?
Ans: vocalization, sense of smell, body's pH regulation
11. Name the structures in the respiratory system.
Ans: nasal cavity, pharynx, larynx, trachea, bronchi, lungs
, 12. What happens to air as it goes from outside the body to the lungs?
Ans: air is filtered so it has no debris
air is warmed to body temp
air is humidified and becomes saturated with water
13. Nasal cavities aka fossae are composed of what?
Ans: none and cartilage
14. What is nasal septum?
Ans: a wall of cartilage that divides the nose into two equal sections of left and right fossae 15. vestibule
most external part of nasal cavity just inside the nostrils
16. What is a vestibule lining?
Ans: skin continuation from the face and vissibrae
17. What is vibrissae?
Ans: short thick hairs that help filter for the respiratory tract aka nose hairs
18. How does nasal conchae or folds help?
Ans: increase the surface area of nasal cavity to aid in warming and humidification of incoming air
19. Why is the nasal cavity highly vascularized?
Ans: to warm incoming air
20. What are the three regions of the pharynx?
Ans: nasopharynx, oropharynx, laryngopharynx
21. What is nasopharynx ?
Ans: connection between nasal cavity and pharynx - superior region of the pharynx at the back of the
nose and above the soft palate
22. What is Eustachian tube?
Ans: connects the middle ear with the nasopharynx and allows passage of air
23. What is oropharynx?
Ans: central portion of the pharynx caudal to the mouth and anterior to the epiglottis
24. What is laryngopharynx?
1. The lungs are symmetrical.
Ans: False
2. What is hilum?
Ans: The "root" of the lung.
3. What color is healthy lung tissue?
Ans: peachy/pink color
4. Where can we find pleurae?
Ans: Membranes that surround the lungs and the cavity around the lungs
5. What is visceral pleura?
Ans: layer of pleura that faces/covers the lung
6. What is parietal pleura?
Ans: outer layer of pleura lying closer to the ribs and chest wall that covers the surface around the lungs
7. What is pleural space/cavity?
Ans: Space between the visceral and parietal pleural membranes (small) typically empty but has a small
amount of fluid that allows for frictionless breathing when diseased, this space can fill with air or fluid
8. What is the function of the pleurae?
Ans: the pleurae help reduce friction and help with inflation and inhalation compartmentalize, protect,
and lubricate the lungs
9. The three main functions of the respiratory system
Ans: 1) air conduction
2) air filtration
3) exchange of gases aka respiration
10. Respiratory systems have roles in which other things?
Ans: vocalization, sense of smell, body's pH regulation
11. Name the structures in the respiratory system.
Ans: nasal cavity, pharynx, larynx, trachea, bronchi, lungs
, 12. What happens to air as it goes from outside the body to the lungs?
Ans: air is filtered so it has no debris
air is warmed to body temp
air is humidified and becomes saturated with water
13. Nasal cavities aka fossae are composed of what?
Ans: none and cartilage
14. What is nasal septum?
Ans: a wall of cartilage that divides the nose into two equal sections of left and right fossae 15. vestibule
most external part of nasal cavity just inside the nostrils
16. What is a vestibule lining?
Ans: skin continuation from the face and vissibrae
17. What is vibrissae?
Ans: short thick hairs that help filter for the respiratory tract aka nose hairs
18. How does nasal conchae or folds help?
Ans: increase the surface area of nasal cavity to aid in warming and humidification of incoming air
19. Why is the nasal cavity highly vascularized?
Ans: to warm incoming air
20. What are the three regions of the pharynx?
Ans: nasopharynx, oropharynx, laryngopharynx
21. What is nasopharynx ?
Ans: connection between nasal cavity and pharynx - superior region of the pharynx at the back of the
nose and above the soft palate
22. What is Eustachian tube?
Ans: connects the middle ear with the nasopharynx and allows passage of air
23. What is oropharynx?
Ans: central portion of the pharynx caudal to the mouth and anterior to the epiglottis
24. What is laryngopharynx?
