Define keratin
What will be an ideal response?
Specialized protein deposited in cells giving a typical hardness and durability.
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Why does the risk of cancer increase in AIDS patients?
A) Suppressor T cell activity resets the normal immune response. B) Immune surveillance is depressed. C) Cell-mediated immunity is enhanced. D) There is an increase in the circulating antibody levels. E) The virus enters human leukocytes by receptor-mediated endocytosis.
What is found in the posterior root ganglion of a spinal nerve?
A. A cluster of sensory neuron cell bodies B. A mass of axons of interneurons C. A mass of axons of motor neurons D. A cluster of cell bodies of interneurons E. A cluster of motor neuron cell bodies
Hassall's corpuscles are always found in the lighter-colored ________ regions of the thymus.
Fill in the blank(s) with the appropriate word(s).
The glial cell that provides structural support and organization to the CNS is the
A. astrocyte. B. ependymal cell. C. neurolemmocyte. D. microglial cell. E. oligodendrocyte.