T cells mature in the __________.
Fill in the blank(s) with the appropriate word(s).
thymus
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The cranial cavity houses the
A. eyeball.?B. ear canals.?C. brain.?D. spinal cord.?E. nasal structures.
Both long term potentiation and long term depression require the release of ____ from the postsynaptic membrane
Fill in the blank(s) with the appropriate word(s).
All of the following are true about spinal nerves EXCEPT
A) they are all mixed. B) there are 31 pairs C) spinal nerves may contain nerve fibers of both the somatic and autonomic nervous systems. D) all motor nerve fibers in spinal nerves extend uninterrupted from the spinal cord to an effector.
Gaps or interruptions in the myelin sheath are called
A. internodes. B. tight junctions. C. neurofilaments. D. nodes of Ranvier. E. gap junctions.