Respiration Intro Flashcards
The main site of gas exchange is the \_\_\_\_\_\_. A.Trachea B.Pharynx C.Larynx D.Non respiratory bronchioles E.Alveoli
E
Which of the following is a passageway for both air and food? A.Trachea B.Larynx C.Pharynx D.Bronchi E.Esophagus
C. The pharynx is a passageway
The larynx diverts food or air into their respective tracts
What is the main 2 functions of the larynx
Direct food and air into repective pathways
Voice production
What determines the pitch of a voice in the larynx
High pitch = Tight short vocal cords
Low Pitch = wide glottis
Which of the following statements regarding the lungs is correct?
A. The left lung is larger than the right lung
B. The left lung has two lobes while the right lung has 3 lobes
C. The left lung has three lobes which the right lung has 2 lobes
D. The blood supply of the lung is from the pulmonary artery and veins
E. The pulmonary plexus innervates the Lungs and visceral pleura
B Left = 2, right = 3
Why does the left lobe of the lung have 2 lobes?
Because of the cardiac notch
What does the pulmonary plexus innervate?
Lungs and visceral pleura
What does the Intercostal Plexus innervate?
Parietal pleura
What is the serosa?
Double layered covering for the lung
What are the layers of the serosa
Visceral and parietal pleuras
What fluid resides between the layers of serosa?
Pleural fluid to reduce friction
Pulmonary arteries carry what type of blood and where to
Carry deoxygenated blood to right side of heart
Pulmonary Veins carry what typ of blood and where to?
Carry oxygenated blood to the left side of the heart
Which of the following is correct in regards to the blood vessels in
the lung?
A. The respiratory arteries and veins provide the lung with its blood
supply
B. Pulmonary veins carry oxygenated blood to the left side of heart
C. Pulmonary veins carry deoxygenated blood to the left side of
heart
D. Pulmonary arteries carry deoxygenated blood from the right side
of the heart
E. B and D are correct
E: B and D are correct
Which of the following cells secrete surfactant in the alveolus
A.Type I alveolar cells
B.Type II alveolar cells
C.Type III alveolar cells
D.Macrophages
E.Pseudostratified ciliated columnar epithelium
B Type II cells do