What provides a hard, continuous surface for the epidermis of the cutaneous membrane?
A) collagen B) keratin C) mucus D) cilia
Answer: B
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The end result of the classical and alternative pathways of complement activation is
A) an increase in pyrogen release. B) release of histamine. C) activated C3B attached to the cell wall. D) C1 bound to two antibodies. E) activation of properdin.
Inhibitory neurotransmitters generally cause ________________, and the changes in membrane potential are referred to as inhibitory postsynaptic potential
Fill in the blank with the correct word.
Opening channels that allow ____________________ ions or ____________________ ions result in depolarization of the plasma membrane
Fill in the blank(s) with correct word
Multiple sclerosis is a neurological disorder in which myelin sheaths in the CNS are destroyed. Which of the following neuroglial cells is being damaged in multiple sclerosis?
A. Oligodendrocyte B. Ependymal cell C. Astrocyte D. Microglia E. Schwann cells