What happens when you breathe in?
your diaphragm expands and your ribcage contracts
* your diaphragm contracts and your ribcage expands
your diaphragm explodes and your ribcage contradicts 2
Air enters your lungs through the...
how many lungs do humans have?
what are bronchial tubes
*air passages inside your lungs
blood vessels insside your body
tiny air sacs that delivr oxygen to the blood
what muscle allows you to breathe in and out?
how many lobes does your right lung have?
how many lobes does your left lung have?
when you breathe out, what gas does your body get rid of? nitrogen
* carbon dioxide
which of the following is not a part of the upper respiratory system? *esophagus
which of the following is not one of the most important muscles involved in respiratory movement? *glottis
external intercostal muscles
which of the following is not one of the accessory respiration muscles? external and internal oblique
inhalation begins wtih the...
which of these doesnt occur when air flows into the lungs? thew air is filtered
the air is cooled
* the air is humidified
blowing out a candle is an example of...
liking the dark
* forced exhalation
which of these is not part of the respiratory system?...