Fechar
3.2 Breathing and respiration.
what is respiration?
What is the respiratory system?
How does the respiratory system work?
When you breathe in what happens to the air?
what do the nostrils do?
what does the mucus do?
Riddle : Im as light as a feather yet the strongest man cant hold me for more than a minute. What am i?
What does the pharynx do?
how much mucus do you swallow each day?
what is the trachea?
What are the alveoli?
what do the alveoli provide?
What happens to the oxygen once it is in the blood?
What is Carbon dioxide and what does the body do with it?
What is breathing and can you stop yourself from breathing?
What is the diaphragm?
What does respiratory require?
How much alveoli makes up your lung?
