30. Fran has a microbial infection attacking his brain. Which cell type would you expect to proliferate and be most active during this time?
A.
astrocytes
B.
microglial cells
C.
oligodendrocytes
D.
ependymal cells
E.
Schwann cells
B
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The posterior longitudinal ligament is
A) a paired ligament that connects the laminae of adjacent vertebrae. B) a fibrous band that connects the posterior surfaces of adjacent vertebral bodies. C) a band of fibrous tissue connecting the spinous processes of adjacent vertebrae. D) a longitudinal fibrous band that is attached to the tips of spinous processes from C7 to the sacrum. E) a wide fibrous band that connect the anterior surfaces of the adjacent vertebral bodies.
Despite its apparent durability, the dermis is subject to tearing. How might a person know that the dermis has been stretched and/or torn?
A) The pain is acute due to the large number of Meissner's corpuscles. B) The appearance of visible, silvery-white scars is an indication of stretching of the dermis. C) The blood vessels in the dermis rupture and the blood passes through the tissue, causing "black-and-blue marks." D) The stretching causes the tension lines to disappear.
Which artery is vulnerable to injury because it runs superficially?
A. The brachial artery B. The femoral artery C. The popliteal artery D. The radial artery E. The subclavian artery
What is the most potent stimulus of the thirst mechanism?
A) osmolarity of the ECF B) atrial natriuretic peptide (ANP) C) increased blood pressure D) increased plasma volume