
ch 29 pt 2
Authored by anna pars
Biology
University
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
which of the following is false?
Apneustic area impulses originating in the pons are received continuously as excitatory impulses in the DRG's inspiratory center
Apneustic area impulses originating in the pons are received continuously as excitatory impulses in the VRG's inspiratory center
Stimulating the pneumotaxic area results in a cessation of inhalation.
The pneumotaxic area is inhibitory in its effect on the brain’s inspiratory center.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
during inhalation, ____ drops below _____.
intrapulmonary pressure; atmospheric pressure
atmospheric pressure; intrapulmonary pressure
atmospheric pressure; intraalveolar pressure
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
which of the following are true?
Phrenic nerves are more important in causing a decrease in thoracic pressure than an increase.
Phrenic nerves are more important in causing an increase in thoracic pressure than a decrease.
impulses along the phrenic nerve are from the inspiratory center, promoting inhalation
impulses conducted along phrenic nerves would promote an increase in thoracic cavity volume.
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
what is true about henry's law?
The amount of O2 that will dissolve in blood plasma is positively correlated to the pO2 inside the alveoli.
The amount of O2 that will dissolve in blood plasma is negatively correlated to the pO2 inside the alveoli.
Henry’s law relates to how the partial pressure and solubility of a gas affect the concentration of that gas in a liquid.
Henry's law relates more to the effect of temperature on gas volume than does Charles' law.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
choose the correct pairing:
VRG: restful inhalation
apneustic area: excitatory effect on DRG
posterior cricoarytenoid: increased voice pitch
lateral cricoarytenoid: increased glottis diameter
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
which of the following is false?
The Hering-Breuer reflex prevents over-inflation of the lungs
A person’s breathing rate has a negative effect on blood pH.
The Hering-Breuer reflex involves stimulation of the pneumotaxic area.
Increased carotid body activity would likely result in an increase in breathing rate.
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