Lab Oral 8

Question 1

Bronchial tree begins at?

Answer 1

Carina

Question 2

Respiratory tree and its branches

Answer 2

1) trachea
2) main bronchus
3) lobar bronchus
4) segmental bronchus
5) conducting bronchiole
6) terminal bronchiole
7) respiratory bronchiole
8) alveolar duct
9) alveolar sac
10) alveolus

Question 3

What mechanism prevents the collapse of the alveoli due to surface tension?

Answer 3

Surfactant

Question 4

Negative pressure is

Answer 4

Negative pressure inhalation is what we do to take a breath in