EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS)
|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
,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 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