Model of the Respiratory System Flashcards
What part of the body does the bell jar represent?
The ribcage
What part of the body does the balloon represent?
The lungs
What part of the body does the rubber sheet represent?
The diaphragm
What part of the body does the tube into balloon represent?
The trachea
How is the bell jar the same as the ribcage?
Approximately the same shape
How is the balloon the same as the lungs?
Inflates and deflates
How is the rubber sheet the same as the diaphragm?
Domed up position matches position when air is exhaled
How is the tube into the balloon the same as the trachea?
The windpipe is a relatively wide tube conducting air into the lungs
How is the bell jar different to the ribcage?
Has no muscles attached to ‘ribs’ and so is rigid and cannot move up and down/ in and out
How is the balloon different to the lungs?
Balloon does not fill the space, or stick to the inside of the ribcage
How is the rubber sheet different to the diaphragm?
Has to be pushed in and out by us
How is the tube into the balloon different to the trachea?
It is not held open by horseshoe shaped stiffening rings
