The glial cell that helps to form the blood-brain barrier is the
A. microglial cell.
B. ependymal cell.
C. oligodendrocyte.
D. neurolemmocyte.
E. astrocyte.
Answer: E
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Lymphocytes are called "wandering" cells because
A) the blood takes them everywhere. B) they can move from one area of the body to another by entering and exiting the bloodstream freely. C) they attack foreign cells or body cells infected by viruses. D) they roam around within the organ in which they are found. E) None of the answers are correct.
Which statement is incorrect about parasympathetic stimulation of the digestive system?
a. In general, it is excitatory for digestive organs. b. It comes primarily through the vagus nerve. c. It is part of the extrinsic nerve supply to the digestive tract. d. It causes salivary glands to secrete saliva rich in mucus. e. It increases salivary, gastric, pancreatic, and biliary secretion.
Hydrocephalus results from an excess of what fluid?
A. Blood B. CSF C. CNS D. ALS
Metastasis is spreading of benign cancer cells
Indicate whether the statement is true or false.