Respiratory System

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bronchi
two shorter tubes that come off of the trachea
diaphragm
muscle that contracts and relaxes to move gas into and out of the lungs
alveoli
air sacs where gas exchange occurs in the lungs
pleural cavity
cavity where the lungs are found
trachea
tube that is held open with cartilage rings; another name for windpipe
bronchioles
the smallest tubes in the lung
capillaries
surrounds alveoli sacs, where oxygen enters the blood
larynx
air passes through this tube; contains vocal cords
inhaling
When air enters the lungs, it is called
uses more
what happens to the amount of oxygen we use when we exercise?
traps dust and dirt
what is the function of nose hairs
traps dust and dirt; warms the air we breathe
what is the function of mucus
your brain
what controls and can change your breathing rate
burp
a way of getting rid of swallowed air
hiccup
when your breathing is out of synch, you have the ________
down
when you breathe in, your diaphragm moves
up
when you breathe out, your diaphragm moves
pharynx
located in the back of the "throat"; food and water passes through this region
releases energy
cellular respiration is a chemical reaction that uses oxygen and nutrients to
olfaction
another word for smelling
6 liters
average amount of air in human lungs
words
the mouth, lips, and tongue help shape sound into