1
ATI TEAS SCIENCE REAL EXAM
QUESTIONS AND VERIFIED ANSWERS 2026
LATES UPDATE// A+ GRADE
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 are the 7 parts of the respiratory system? - ANSWER-1.
Nose2. 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? -
ANSWER-Capillaries
What is cilia? - ANSWER-Tiny hairs in the nose and trachea that wave particles
upaway and out
What is mucus? - ANSWER-Something that keeps the air warm and moist but
alsotraps 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), ribcage rises, volume of chest cavity increases, air moves in to fill
the space
What happens during exhalation? - ANSWER-Diaphragm moves up (relaxes), rib
, 2
cagelowers, 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
enoughO2 or get rid of enough CO2
, 3
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 isgenerally 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 withmucous
What is mesothelioma? - ANSWER-Lungs become exposed to asbestos and
loseelasticity
What is elastic recoil? - ANSWER-The ability for the alveoli to get filled with air
thenreturn to their normal shape once the air is released
What is a spirometer? - ANSWER-an instrument for measuring the air capacity of
thelungs
What is tidal volume? - ANSWER-The amount of air taken in and breathed
out in atypical breath
What is supplemental volume? - ANSWER-The xtra air that can be inhaled or
exhaledwith a deep breath
What is reserve amount? - ANSWER-The amount of extra air you can breathe out
whenyou force air out of your lungs
What is residual amount? - ANSWER-The amount of air in your lungs that you
cannotget rid of (even during forced exhaling)
What is vital capacity? - ANSWER-All the air you can control going in or out of
yourlungs (supplemental + reserve = vital)
What is total capacity? - ANSWER-From the top of your supplemental amount
to thebottom of your residual volume
Main idea - ANSWER-the most important or central thought of a paragraph or
largersection of text, which tells the reader what the text is about
, 4
Topic - ANSWER-a particular issue or idea that serves as the subject of a
paragraph,essay, report, or speech
-topic is the general subject of a paragraph
-Topics are simple and are described with just a word or a phrase.
ATI TEAS SCIENCE REAL EXAM
QUESTIONS AND VERIFIED ANSWERS 2026
LATES UPDATE// A+ GRADE
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 are the 7 parts of the respiratory system? - ANSWER-1.
Nose2. 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? -
ANSWER-Capillaries
What is cilia? - ANSWER-Tiny hairs in the nose and trachea that wave particles
upaway and out
What is mucus? - ANSWER-Something that keeps the air warm and moist but
alsotraps 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), ribcage rises, volume of chest cavity increases, air moves in to fill
the space
What happens during exhalation? - ANSWER-Diaphragm moves up (relaxes), rib
, 2
cagelowers, 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
enoughO2 or get rid of enough CO2
, 3
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 isgenerally 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 withmucous
What is mesothelioma? - ANSWER-Lungs become exposed to asbestos and
loseelasticity
What is elastic recoil? - ANSWER-The ability for the alveoli to get filled with air
thenreturn to their normal shape once the air is released
What is a spirometer? - ANSWER-an instrument for measuring the air capacity of
thelungs
What is tidal volume? - ANSWER-The amount of air taken in and breathed
out in atypical breath
What is supplemental volume? - ANSWER-The xtra air that can be inhaled or
exhaledwith a deep breath
What is reserve amount? - ANSWER-The amount of extra air you can breathe out
whenyou force air out of your lungs
What is residual amount? - ANSWER-The amount of air in your lungs that you
cannotget rid of (even during forced exhaling)
What is vital capacity? - ANSWER-All the air you can control going in or out of
yourlungs (supplemental + reserve = vital)
What is total capacity? - ANSWER-From the top of your supplemental amount
to thebottom of your residual volume
Main idea - ANSWER-the most important or central thought of a paragraph or
largersection of text, which tells the reader what the text is about
, 4
Topic - ANSWER-a particular issue or idea that serves as the subject of a
paragraph,essay, report, or speech
-topic is the general subject of a paragraph
-Topics are simple and are described with just a word or a phrase.
