Anatomy of lungs, airways and blood supply

Question 1

Name some functions of the respiratory system

Answer 1

Gas exchange
Acid base balance
protection from infection
communication

Question 2

Where do foreign bodies often lodge in the respiratory tract?

Answer 2

The right bronchi as it has a larger width

Question 3

What parts of the respiratory tract contains cartilage?

Answer 3

Larynx
Trachea: C-shaped rings
Bronchus

Question 4

Where is there anatomical dead space?

Answer 4

In the trachea, bronchus and bronchioles as their walls are too thick to allow diffusion. They simply conduct air to the alveoli.

Question 5

What sort of fibres are present in the lungs:

Elastin or fibrous?

Answer 5

Elastin

Question 6

Name that cell!
> Makes up 97% of alveolar surface
> Simple squamous epithelium
> Gas exchange

Answer 6

Type 1 pneumocyte

Question 7

What cell produces surfactant?

Answer 7

Type 2 pneumocyte

Question 8

What is the function of mucous?

Answer 8

Moistens air
Traps particles
Provides large surface area for cilia to act on