What does the respiratory system do? - answer-Brings in oxygen to go into the
cells, and picks up carbon dioxide to be removed from the bodyguard
What
... [Show More] are the 7 parts of the respiratory system? - answer-1. Nose
2. Pharynx
3. Larynx (voice box)
4. Trachea (windpipe)
5. Bronchi
6. Bronchioles
7. Alveoli
What are alveoli surrounded by to allow the exchange of O2 and CO2? - answerCapillaries
What is cilia? - answer-Tiny hairs in the nose and trachea that wave particles up
away and out
What is mucus? - answer-Something that keeps the air warm and moist but also
traps particles
How many alveoli does each lung have? - answer-150 million
What does hemoglobin do? - answer-Carries oxygen through the blood
What is pleura? - answer-Sacs that surround the lungs
What is the diaphragm? - answer-The muscle at the bottom of the thoracic cavity
What happens during inhalation? - answer-Diaphragm moves down (contracts),
rib cage rises, volume of chest cavity increases, air moves in to fill the space
What happens during exhalation? - answer-Diaphragm moves up (relaxes), rib
cage lowers, space becomes smaller, air is pushed out of lungs
What does the medulla oblongata do? - answer-Controls breathing
What is chronic bronchitis? - answer-Bronchi swell and become clogged with
mucus
What is emphysema? - answer-Tissues in lungs lose elasticity; tissues can't
enough O2 or get rid of enough CO2
What is lung cancer? - answer-Cells that do not stop reproducing; can spread to
other locations because lungs are so central and connected to so much; survival is
generally less then 5 years from diagnosis
What is heart disease? - answer-Blood vessels are constricted, blood pressure
rises, heart has to work harder, heart wears out more quickly
What is cystic fibrosis? - answer-Genetic (recessive); lungs can get clogged with
mucous
What is mesothelioma? - answer-Lungs become exposed to asbestos and lose
elasticity
What is elastic recoil? - answer-The ability for the alveoli to get filled with air then
return to their normal shape once the air is released
What is a spirometer? - answer-an instrument for measuring the air capacity of
the lungs
What is tidal volume? - answer-The amount of air taken in and breathed out in a
typical breath
What is supplemental volume? - answer-The xtra air that can be inhaled or
exhaled with a deep breath
What is reserve amount? - answer-The amount of extra air you can breathe out
when you force air out of your lungs
What is residual amount? - answer-The amount of air in your lungs that you
cannot get rid of (even during forced exhaling)
What is vital capacity? - answer-All the air you can control going in or out of your
lungs (supplemental + reserve = vital)
What is total capacity? - answer-From the top of your supplemental amount to
the bottom of your residual volume [Show Less]