Here are the learning objectives for this topic:
useful respiration websites
Try Doc Brown´s quiz.
Revise respiration on Bitesize.
Revise the respiratory system on Bitesize.
Revise gas exchange on Bitesize.
Watch this excellent breathing animation.
Clck here to go to an animated tour of the heart. This is the website we use in class that says how many litres of blood is pumped as you watch.
watch this video about how the heart works
watch this video about how heart-Lung machines work
Surgeons can stop a person´s heart to operate on it as they connect the person to a Heart-Lung machine during a heart bypass