Functional Anatomy - Respiratory System

Question 1

Total lung capacity

Answer 1

• Total lung volume after a maximal inspiration
• Average Volume:
  - Male: 6.0L
  - Female: 4.2L

Question 2

Tidal volume

Answer 2

• Volume of each breath, inspiration or expiration
• Average Volume:
  - Male: 0.6L
  - Female: 0.5L

Question 3

Residual volume

Answer 3

• Volume in lungs after maximum expiration
• Average Volume:
  - Male: 1.2L
  - Female: 1.0L

Question 4

Forced vital capacity

Answer 4

• Maximum volume expired after a maximum inspiration
• Average Volume:
  - Male: 4.8L
  - Female: 3.2L

Question 5

Pulmonary ventilation

Answer 5

• The process of moving and exchanging air from the environment with air from the lungs.

Question 6

Diffusion

Answer 6

• Oxygen is transported from the alveoli to the haemoglobin part of the red blood cells, across the alveolar-capillary barrier; carbon dioxide moves in the reverse manner.

Question 7

Diaphragm Movement

Answer 7

• On inhalation, diaphragm descends.

- On expiration, diaphragm moves up.

Question 8

Alveoli

Answer 8

• Thin walls allow the diffusion of gases

- Gaseous exchange