Respiratory System

Question 1

What are the functions of the respiratory system?

Answer 1

External gas exchange, regulation of blood pH, sense of smell, voice production and aiding venous and lymph return

Question 2

Air flows from ____ areas of pressure to ___ areas of pressure?

Answer 2

High, lower

Question 3

Describe inhalation

Answer 3

Contracting respiratory muscles > lung expand, increasing volume > decrease pressure within lung to below atmospheric air pressure > air flows into lungs.

Question 4

Describe exhalation

Answer 4

muscles relax > decrease in lung volume > increase pressure within lungs to above atmospheric air pressure > air flows out of lungs

Question 5

Upper respiratory system includes?

Answer 5

Nose, nasal cavity, pharynx, + associated structues

Question 6

Lower respiratory system includes?

Answer 6

Larynx, trachea, bronchi, bronchiole + alveoli

Question 7

True or False? Rhinoviruses cannot infect the lower respiratory system or gut?

Answer 7

True - because of the acidic conditions in the gut and it’s too warm in the lower respiratory tract

Question 8

Which components of the respiratory system are colonized during a cold?

Answer 8

Nasal cavity, sinuses and pharynx