GH 125 Unit 6 Exam Questions and
Answers 100% Solved
function of upper respiratory tract - ✔✔clean, warm, and humidify air
Where is the eustachian tube located? - ✔✔middle ear
What does the Eustachian tube connect? - ✔✔middle ear to nasopharynx
What do we force air thru when we speak? - ✔✔Vocal folds
What opening is closed off by the epiglottis? When? - ✔✔Larynx when
swallowing
function of lower respiratory tract - ✔✔Cleanse, warm humidify air, and
exchange gases
What helps hold the lower respiratory tract open? - ✔✔Cartilage rings of
trachea
What is the parietal pleura? - ✔✔lines the walls of the thoracic cavity
What is the visceral pleura? - ✔✔serous membrane that covers lungs
What happens if the pleura system is compromised with a break or blood in
the space. - ✔✔
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Where does pulmonary gas exchange occur? - ✔✔alveoli
Where does systemic gas exchange occur? - ✔✔at the capillary networks
of the tissues
What is diffusion? - ✔✔Movement of molecules from high to low
concentration
Where does diffusion take place in the respiratory system? - ✔✔alveoli
What are normal respiratory rates? - ✔✔Adult: 12-18 breaths/min
Child: 20-25 breaths/min
What is normal inspired volume? - ✔✔500 mL
What is the diaphragms position at rest and contracting? - ✔✔When
breathing in contracts and moves downward
Where are the respiratory control centers located? - ✔✔medulla and pons
Where are chemoreceptors located? - ✔✔carotid and aortic bodies
What cause chemoreceptors to signal for increased breathing? -
✔✔Decreased blood oxygen, increased blood carbon dioxide, and
increased blood acidity(lower ph)
Hyperventilation - ✔✔the condition of taking abnormally fast, deep breaths