Curated OER
The Respiratory System
Respiratory systems are different in worms, fish, and human lungs, and each are explained by Paul Andersen with his fabulous SMART Board. How are these respiratory systems similar? Keeping breathing surfaces moist is essential in all...
Curated OER
The Respiratory System - How it Works?
Diagrams and video footage of people help show the structures and functions of the respiratory system. Exercise is highlighted, making this an accessible video for a health class.