The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out.
They switch roles after every five cycles CPR or about every two minutes.
<h3>What is CPR?</h3>
The term CPR is the acronym for cardiopulmonary resuscitation. It is an important first aid that is administered to a person that has a sudden heart attack.
If more than one responder is available and trained in CPR, they switch roles after every five cycles CPR or about every two minutes.
Learn more about CPR:brainly.com/question/13320397
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