Respiration

Question 1

List the important structures

Answer 1

1) trachea
2) ribs
3) lungs
4) bronchus
5) bronchioles
6) diaphragm

Question 2

What is the path way that air takes?

Answer 2

1) nasal cavity
2) pharynx
3) larynx
4) trachea
5) bronchus
6) lung
7) bronchioles
8) alveolus (tiny sacks at the end of bronchioles)

Question 3

What do alveoli do?

Answer 3

1) They increase SA for more diffusion
2) There’s approximately 600million per lung
3) Exchange carbon dioxide and oxygen in the blood stream

Question 4

What is the Structure of alveoli

Answer 4

They are lined with layers of lipoprotein (called surfactant) they prevent alveoli from collapsing on exhale. A fetus begins produce surfactant at 24-28weeks.