Structures organization and Functions

Question 1

Upper region

Answer 1

Nares, nasal cavity, pharynx, larynx, trachea, bronchi

Question 2

Lower region

Answer 2

Bronchioles, alveolar ducts, alveolar sacs

Question 3

Functions

Answer 3

-warm, moisten, filters air
-olfactory senses
-exchanges O2 and CO2
-

Question 4

Phases of breathing

Answer 4

• pulmonary ventilation (breathing)
• external respiration
• respiratory gas exchange
• internal respiration