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Pre-Lab Questions
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1
Respiratory areas of the brain include all of the following except the
A)brainstem.
B)pons.
C)medulla oblongata.
D)pineal gland.
2
Breathing rate increases as blood concentrations of
A)carbon dioxide increase.
B)carbon dioxide decrease.
C)hydrogen ions decrease.
D)oxygen increase.
3
Forced expiration muscles do not include the
A)internal intercostal muscles.
B)rectus abdominis muscles.
C)sternocleidomastoid muscles.
D)external oblique muscles.
4
Peripheral chemoreceptors sensitive to low blood oxygen levels are located in the
A)heart.
B)aortic arch and carotid arteries.
C)aorta only.
D)carotid arteries only.
5
Normal blood pH is
A)6.8.
B)8.0.
C)6.8-8.0.
D)7.35-7.45.
6
An increase in the duration of inspirations is the normal response from the inflation reflex.
A)True
B)False
7
The dorsal respiratory group of the medullary respiratory center is involved with stimulation of the diaphragm contractions.
A)True
B)False





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