Physio Final Exam
Human Body
Human Body
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Lernkarten
Surfactant:
Which of the below mentioned statements is incorrect
The significant reduction in lung diffusion capacity is manifested by
Hering-Breuer reflex is triggered by
- If you treat a patient with bronchoconstriction using beta-agonist, a possible side effect which is:
70% of CO2 transported in body is in form of?
D. Bicarbonates in plasma
Most of Bicarbonates is formed in the:
Choose correct sentence:
9. Sudden decrease in atmospheric oxygen concentration will:
The symptom of overactivity of parasympathetic system is:
2) Pressure and volume of gas in a container are related to temperature and number of gas molecules. This is known as ________ law.
6) Alveolar ventilation refers to the
15) Which of the following features of the alveolar sacs allows for the ease of diffusion of gasses?
19) Dalton's law states that
22) In quiet breathing,
23) Boyle's law states that gas volume is
25) A typical value for intrapleural pressure is ________ mm Hg.
30) If a student inhales as deeply as possible and then blows the air out until he cannot exhale any more, the amount of air that he expelled is his
33) In the lungs, the
35) Flow of air
36) An increase in PCO2 would cause
37) Chronic inhalation of fine particles that reach the alveoli leads to ________ lung disease.
4) Of the factors that influence diffusion of respiratory gases, the most variable and, therefore, 4) important factor to consider is the
6) The lung pathology most likely to result from certain kinds of heart disease is
7) Hypoxia resulting from fluid accumulation in the alveoli that cannot be corrected by oxygen 7) therapy can lead to
12) At a PO2 of 70 mm Hg and normal temperature and pH, hemoglobin is ________% saturated with oxygen.
13) Which of the following would make the oxygen-hemoglobin curve shift right?
shift to the right = decreased O2 affinity
16) In the medulla oblongata, the nucleus tractus solitarius contains the ________ of neurons.
17) The most important chemical regulator of respiration is
18) An increase in the level of carbon dioxide in the blood will
19) The expiratory neurons control the ________ muscles, whereas the inspiratory neurons control the 19) ________ muscles.
21) The Hering-Breuer reflex
58) Carbon dioxide is more soluble in water than oxygen. To get the same amount of oxygen to dissolve in plasma as carbon dioxide, you would have to
57) Jill lives in St. Louis, which is close to sea level. She decides to spend a month of her summer vacation working in the mountains outside of Denver. After a week in the mountains, what kinds of changes would you expect to see as Jill adapts to the higher altitude?
60) A student in your lab volunteers to enter a hypoxic breathing chamber for 10 minutes, and his alveolar PO2 drops to 50 mm Hg. What other change would occur?
61) A molecule that blocks the activity of carbonic anhydrase would
62) The chloride shift occurs when
63) Blocking afferent action potentials from the chemoreceptors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to all EXCEPT which of the
following?
5) Which organ is NOT known to include a special portal system for blood?
6) Which artery/arteries branch(es) is/are most proximal to the beginning of the aorta at the heart?
