Compliance equals a change in volume divided by a change in pressure. If airway structures lose elastic fibers as a result of increased protein breakdown by proteases, compliance will __________.
A. not change
B. maximally decrease
C. increase
D. decrease
Answer: C. increase
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Which of these are secretions of the parietal cells of the gastric mucosa?
A. pepsinogen and intrinsic factor B. gastrin and intrinsic factor C. HCl and pepsinogen D. HCl and intrinsic factor E. HCl and gastrin
If during the process of intramembranous ossification, the ossification center was removed, the result would be
A. no bone grows. B. blood vessels will be encouraged to invade the area. C. surrounding mesenchymal cells will not condense into periosteum because the ossification center is where these cells arise. D. a hollow space develops in between the two layers of compact bone, as no spongy bone is produced.
The structure found between the posterior rootlets and the posterior root ganglion is called the __________.
A. anterior horn B. anterior root C. posterior root D. posterior horn E. spinal nerve
Complete the following statement using the choices below. Air moves out of the lungs when the pressure inside the lungs is ________
A) equal to the pressure in the atmosphere B) less than the pressure in the atmosphere C) greater than the intra-alveolar pressure D) greater than the pressure in the atmosphere