NU110
NU110: Exam 2- Integrated Human Sciences (Latest Update )
| Questions & Answers | 100 % Correct | Grade A - Galen
1.Breathing through the nose instead of the mouth allows the nasal mucosa
to: warm and moisten
2.The respiratory system is a series of spaces and passageways that conduct
air into and through the: lungs
3.The larynx connects the: pharynx with the trachea
4.A framework of separate cartilage _________ the trachea and keeps it open.:
reinforces
5.This cartilage is found along the entirety of the trachea and they are open in
the posterior so the ________ can expand when swallowing.: esophagus
6.A continuous doubled sac called the ____ covers the lung.: pleura
NU110
,NU110
2
7.Between the 2 layers of the pleura is the __________, which contains a thin
film of fluid that lubricated the membranes and allows the surfaces to slide
easily on one another.: pleural space
8.The muscular partition that separates the thoracic cavity from the abdominal
cavity is called the: diaphragm
9.The right bronchus is larger in diameter than the left, and extends downward
in a more vertical direction, this makes it more susceptible to ____________
if a foreign body is inhaled: enter the right lung
10. ______ is the movement of air into and out of the lungs, normally
accomplished by breathing: ventilation
11. There are 2 phases of ventilation: __________ is the drawing of air into
the lungs and _______ which is the expulsion of air from the lungs.:
inhalation and exhalation 12. The _____________ determines how easily the
air flows down the pressure gradient. So, if there is a narrowing in the airway,
it requires more work for respiration. Ex. Asthma: radius of the airway
13. ________ is the ease that the lungs and the thorax expand in inhalation.:
Compliance
NU110
, NU110
3
14. External gas exchange is the movement of gases between the
______________ in the lungs: alveoli and the capillary blood
15. Almost all of the oxygen that diffuses into the capillary blood in the lungs
binds to ________ in the red blood cells.: hemoglobin
16 __________ diffuses from the tissue cells into the blood and is transported
to the lungs.: Carbon Dioxide
17. The blood becomes more acidic as the amount of carbon dioxide ______
in the blood.: increases
18. As the level of carbon dioxide is eliminated more than the body is
producing, the blood pH becomes more ________: alkaline
19. The respiratory control center is located in the __________________ of
the brain stem.: medulla and the pons
20. The nerve fibers send signals to the __________ that are then send to
the diaphragm and the intercostal muscles.: phrenic nerve
21. The sensors in the respiratory center known as _________ are sensitive
to arterial blood gas levels: chemoreceptors
NU110