Anatomy
Physiology
Public Health
Environment
100

Gas exchange occurs in these tiny air sacs of the lungs.

Alveoli

100

This tube connects the throat to the lungs (generally called the windpipe).

Trachea

100

The leading preventable cause of lung disease worldwide.

Smoking
100

This index (often reported in weather apps) tells you how polluted the air is.

AQI (Air Quality Index)

200

Oxygen is transported in the blood primarily bound to this molecule.

Hemoglobin

200

These smaller branches of the bronchi regulate airflow and resistance.

Bronchioles

200

This type of prevention aims to stop lung disease before it starts (e.g., anti-smoking campaigns). [primary, secondary, tertiary]

Primary Prevention

200

This common air pollutant from vehicles can impair lung function.

Carbon monoxide (and/or nitrogen dioxide)

300

This process allows gases to move across the alveolar membrane based on concentration gradients.

Diffusion

300

This structure prevents food from entering the lungs during swallowing.

Epiglottis

300

Secondhand smoke exposure increases risk for this condition in children.

Asthma (and/or respiratory infections)

300

Wearing this type of mask can help reduce inhalation of fine particulate matter during wildfires.

N95

M
e
n
u