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What is 1 + 3?
tube at the back of the throat
voice box or "Adam's Apple"
tiny air sacs in the lungs
large spongy masses of tissue and air sacs in which O2 and CO2 are exchanged
flap of skin at the top of the trachea which stops food from entering the lungs
2 tubes leading from trachea to each of the lungs
large muscle that moves the ribs
We do not have to think about breathing. Our body does it automatically. T/F
The air we breathe is made up entirely of oxygen. T/F
Lungs are sealed inside the ribs by a thin bag called the _________________.
One indicator of a healthy body is a large lung capacity. T/F
voice box or Adams Apple
The larynx is another name for the ___________________
Lungs are the only organ in the body light enough to float on water. T/F
The amount of ________________ wastes in the blood determine how fast you breathe. You breathe faster to take in the extra _____________ that is needed.
warmed, filtered, moistened
Cold air is _______________ in the nasal passages, ________________ by the hairs and mucus in the linings, and ___________________ by the mucus on the way to the lungs.
We breathe in carbon dioxide and breathe out oxygen. T/F
Air sacs in the lungs are called the ________________. Tiny blood vessels, or __________________, take oxygen from the air sacs into the blood stream.
Yawning, coughing, sneezing and hiccuping are ______________actions
When you inhale _______________, your diaphragm _________________.
cigarette smoke, coal dust, pollution
It's a well-documented fact that continuous exposure to ___________________ over a long period of time, damages the lungs
carbon dioxide, relaxes
When you exhale _______________, your diaphragm _________________
Inflammation of the lungs is called __________________
Plants give off O2 which humans inhale. Plants take in the CO2 that humans exhale.
Why do humans and plants have a good "working relationship"
oxygen in and carbon dioxide out
Explain the main function of the respiratory system
If you study, you can pass this test. T/F