Drexel A&P 103 Final Prep / Ch 23-25 & 28
Which of the following structures is not part of the respiratory zone?
- Respiratory bronchioles
- Terminal bronchioles
- Alveolar ducts
- Alveoli - Answer- Terminal bronchioles
During inhalation, the thoracic cavity __________; during exhalatio...
Which of the following structures is not part of the respiratory zone?
- Respiratory bronchioles
- Terminal bronchioles
- Alveolar ducts
- Alveoli - Answer- Terminal bronchioles
During inhalation, the thoracic cavity __________; during exhalation, the thoracic
cavity __________.
- Becomes larger; becomes smaller than its resting size
- Returns to normal, resting size; becomes smaller than its original size
- Becomes larger; returns to its original size
- Obtains its original size; becomes smaller due to muscles of exhalation - Answer-
Becomes larger; returns to its original size
The partial pressure of gases in cells of systemic tissues result from
- Cellular respiration
- Internal respiration
- Pulmonary ventilation
- External respiration - Answer- Cellular respiration
Pulmonary ventilation (breathing) can also be described as
- The process of inspiration only
- The process of expiration only
- The process of gas exchange in the lungs only
- The movement of air into and out of the lungs - Answer- The movement of air into
and out of the lungs
During alveolar gas exchange, blood P(CO2)
- Decreases from 45 to 40 mm Hg
- Increases from 40 to 45 mm Hg
- Increases from 40 to 104 mm Hg
- Decreases from 95 to 40 mm Hg - Answer- Decreases from 45 to 40 mm Hg
During systemic gas exchange blood P(O2)
- Decreases from 45 to 40 mm Hg
- Decreases from 95 to 40 mm Hg
- Increases from 40 to 45 mm Hg
- Increases from 40 to 104 mm Hg - Answer- Decreases from 95 to 40 mm Hg
The largest percentage of carbon dioxide is transported in the blood
- As bicarbonate dissolved in the plasma
- Dissolved in the plasma
- Attached to the globin portions of hemoglobin
, - Attached to the hydrophilic carrier in the plasma - Answer- As bicarbonate
dissolved in the plasma
Boyle's Law states that at a constant temperature
- The pressure exerted by a gas varies inversely with the volume of that gas
- The pressure exerted by a gas varies directly with the volume of that gas
- The pressure exerted by a gas remains the same no matter what the volume of that
gas is
- The volume of a gas remains the same no matter what the pressure exerted by that
gas is - Answer- The pressure exerted by a gas varies inversely with the volume of
that gas
The right lung has __________ lobes, and the left lungs has __________ lobes.
- Five; four
- Three; two
- Three; three
- Two; two - Answer- Three; two
The respiratory division of the respiratory system
- Involves the exchange of oxygen and carbon dioxide between the air and blood
- Involves the transport of air into and out of the lungs - Answer- Involves the
exchange of oxygen and carbon dioxide between the air and blood
The lungs remain inflated despite their tendency to collapse. What is the reason for
this?
- The elastic tissue content of the lung
- The negative intrapleural pressure relative to intrapulmonary pressure
- A partial vacuum created in the intrapulmonary cavity - Answer- The negative
intrapleural pressure relative to intrapulmonary pressure
During normal quiet breathing, the __________ is inactive and exhalation is a
passive event that does not require nervous stimulation.
- Ventral respiratory group
- Dorsal respiratory group - Answer- Ventral respiratory group
The main function of the sympathetic innervation of the lungs is
- Bronchodilation
- Bronchoconstriction - Answer- Bronchodilation
True or False: As the diaphragm relaxes, it is depressed (move inferiorly) - Answer-
False
True or False: As the lungs expand while breathing, the pressure in the lungs
decreases. - Answer- True
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Gurustudy. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.66. You're not tied to anything after your purchase.
