A Digital Resource on the Histology of the Respiratory System

Welcome to this digital resource on the histology of respiratory system. This resource is designed to aid your

mastery of the respiratory histology by allowing you to revisit the material presented during lab. The material

presented here corresponds with the material presented during lab. In fact you will need your lab exercise, the

Histology of Respiratory System to progress through this digital resource. We hope you find this material

helpful. However it should not take the place of slide observation in the laboratory. For you to fully appreciate

histological detail and completely explore a slide of the respiratory system you should observe the slide through

the microscope. Also all slide tests involve histology presented through the microscope.

Airways: Posterior Trachea

Trachea

scanning

Cartilage if present• type• arrangement

Muscle• type• arrangement

Epithelium• type• features

epithelium lining trachea

esophagus

Airways: Trachea

Trachea

low

Cartilage if present• type• arrangement

Muscle• type• arrangement

Epithelium• type• features

Airways: Trachea

Trachea

high

Epithelium• type• features

Airways: Trachea

Trachea

high

Cartilage if present• type• arrangement

Airways: Trachea

Trachea

high oil

Epithelium• type• features

Lung: Airways and Alveoli

Airways and Alveoliscanning

Structure “a”• name• gas exchange?

Structure “b”• name• gas exchange?

Structure “c”• name• gas exchange?

Structure “d”• name• gas exchange?

Structure “e”• name• gas exchange?

a

c

d

e

b

Airways: Bronchus

Bronchus

scanning

Cartilage if present• type• arrangement

Muscle• type• arrangement

Epithelium• type• features

Airways: Bronchus

Bronchus

scanning

Cartilage if present• type• arrangement

Muscle• type• arrangement

Epithelium• type• features

Airways: Bronchus

Bronchus

high

Cartilage if present• type• arrangement

Muscle• type• arrangement

Epithelium• type• features

Airways: Bronchiole

Bronchiole

low

Cartilage if present• type• arrangement

Muscle• type• arrangement

Epithelium• type• Features

Blood Vessel• type

Airways: Bronchiole

Bronchiole

high

Cartilage if present• type• arrangement

Muscle• type• arrangement

Epithelium• type• features

Gas Exchange: Alveoli

Alveoli

high

• single alveolus• alveolar sac • capillaries

Gas Exchange: Alveoli

Alveoli

high oil

• single alveolus• alveolar sac • capillaries