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...

By detailing the percentages of gases in the air we breathe, the lecturer instructs on respiration and the need for oxygen. He also recaps the structure of alveoli in our lungs and how they interact to allow gas exchange with our blood.

Watch as the Khan Academy explains why red blood cells are efficient carriers of hemoglobin and explains the difference between pulmonary arteries and veins. This thorough video, complete with excellent explanations and diagrams, will...

If Hemoglobin and Red Blood Cells play an essential role in your curriculum or have piqued your students' interest, then this video would be an asset for understanding that higher acidity and Carbon Dioxide play an allosteric inhibition...

Intersperse your viewing of this video with questions that are shown on the screen. Keep your learners engaged by having them take notes and answer the questions. Parts of the respiratory system are shown with pictures and animation...