Respiratory System

Question 1

Functions of respiratory system

Answer 1

Gas exchange, regulation of blood pH, sensory receptors, air filtration, vocal sounds

Question 2

Key processes of respiratory system

Answer 2

1. Pulmonary ventilation (in and out of lungs)
2. Alveolar respiration (lungs and blood)
3. Tissue respiration (blood and cells)

Question 3

Pathway of airflow

Answer 3

1. Nose
2. Pharynx
3. Larynx
4. Trachea
5. Bronchi

Question 4

Pleural membrane

Answer 4

1. Visceral (deep/inner): lines lungs
2. Parietal: lines cavity

Question 5

Pleural cavity

Answer 5

Space between membranes; contains lubricating fluid to allow frictionless breathing