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FREE AND STUDY GAMES ABOUT A/P WEEK 12 EXAM
QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -46 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: By the time the blood leaves the lung capillaries to return to the heart, what percentage of the blood's hemoglobin has united with oxygen?55% 63% 82% 97%
Answer:
97% Question 2: If the tidal volume of a given individual is 500 ml, then the anatomical dead space is approximately _____ ml.50 100 150 200
Answer:
150
Question 3: The PCO2 in the atmosphere is: less than in the alveolar air.greater than in the alveolar air.equal to the alveolar air.greater than arterial blood.
Answer:
less than in the alveolar air.
Question 4: Which of the following does not distribute air?
Trachea Bronchus Alveolus Nose
Answer:
Alveolus Question 5: The anatomical division of the pharynx that is located behind the mouth from the
soft palate above to the level of the hyoid bone below is called the:
nasopharynx.oropharynx.laryngopharynx.sphenopharynx.
Answer:
oropharynx.Question 6: Which of the following is not a regulated process associated with the functioning of the respiratory system?Transport of gases Gas exchange in lungs and tissue Control of cell metabolism rate Pulmonary ventilation
Answer:
Control of cell metabolism rate
Question 7: The PCO2 in alveolar air is _____ blood.
less than in the systemic venous greater than in the systemic venous equal to the systemic arterial Both A and C are correct.
Answer:
Both A and C are correct.Question 8: The eustachian tube connects the middle ear with the: trachea.nose.nasopharynx.oropharynx.
Answer:
nasopharynx.Question 9: The approximate partial pressure of oxygen at standard atmospheric pressure is about _____ mm Hg.23 160 300 590
Answer:
160 Question 10: Boyle's law states that the volume of a gas varies _____ with pressure at a _____ temperature.directly; constant inversely; constant directly; constantly changing inversely; constantly changing
Answer:
inversely; constant Question 11: The lower border of the cavity of the larynx is formed by the: epiglottis.cricoid cartilage.glottis.thyroid cartilage.
Answer:
cricoid cartilage.
Question 12: Which of the following would have the greatest accelerating effect on the dissociation of oxygen from hemoglobin?Increased PO2 Decreased PCO2 Decreased PO2 and decreased PCO2 Decreased PO2 and increased PCO2
Answer:
Decreased PO2 and increased PCO2 Question 13: The smallest branches of the bronchial tree are: primary bronchi.secondary bronchi.tertiary bronchi.bronchioles.
Answer:
bronchioles.
Question 14: Which of the following constitutes total lung volume?
Residual volume and vital capacity Tidal volume, inspiratory reserve volume, and expiratory reserve volume Residual volume and tidal volume Vital capacity and tidal volume
Answer:
Residual volume and vital capacity Question 15: The hollow nasal cavity is separated by a midline partition called the: septum.conchae.cribriform plate.turbinates.
Answer:
septum.Question 16: About 98.5% of the oxygen carried by systemic arterial blood is attached to: bicarbonate ions.hemoglobin.carbaminohemoglobin.chloride ions.
Answer:
hemoglobin.
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