Hydrocephaly is a condition whereby cerebrospinal fluid accumulates around the brain. What supportive cells continue CSF production despite it backing up in the subarachnoid space?
A.
astrocytes
B.
microglial cells
C.
oligodendrocytes
D.
macrophages
E.
ependymal cells
E
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An advantage of a 15-degree angulation of the gantry when performing CT head imaging is ___________________.
Fill in the blank(s) with the appropriate word(s).
Cortisol is useful in controlling inflammation reactions because it
A) destabilizes lysosomal membranes. B) decreases blood flow. C) decreases the permeability of capillaries. D) increases synthesis of prostaglandins.
MHC II proteins are located in the membranes of all cells in the body except for mature RBCs, macrophages, b-cells, and dendritic cells.
a. true b. false
Oxygen has an atomic number of 8 and an atomic mass of 16. How many valence electrons does it have?
A) 4 B) 6 C) 16 D) 8 E) 2