ATI TEAS ; SCIENCE , ATI TEAS EXAM QUESTIONS AND
ANSWERS UPADATED 2025-2026 VERIFIED BY EXPERTS
ALREADY GRADED A+
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. 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?
ANSWER; Capillaries
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
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 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
ANSWERS UPADATED 2025-2026 VERIFIED BY EXPERTS
ALREADY GRADED A+
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. 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?
ANSWER; Capillaries
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
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 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
