The action potential moves from the sarcolemma surface deep into the myofiber via the ______.
Fill in the blank(s) with correct word
Ans: transverse or T Tubules
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The structure of RNA differs from DNA in that
A) the backbone of RNA contains ribose. B) RNA contains pyrimidines but not purines. C) RNA contains purines but not pyrimidines. D) DNA contains pyrimidines but not purines. E) DNA contains purines but not pyrimidines.
Conduction of a nerve impulse would be the fastest in which of the following?
A. A small fiber with multiple Schwann cells B. A large unmyelinated fiber C. A small diameter myelinated fiber D. A large diameter myelinated fiber E. A small unmyelinated fiber
The lower limit of resolution of a light microscope is ________.
A. 100?m B. 10?m C. 0.1?m D. 0.01?m E. 1.0?m
Select the statement that is most correct.
A) Ganglia are collections of neuron cell bodies in the spinal cord that are associated with efferent fibers. B) Ganglia associated with afferent nerve fibers contain cell bodies of sensory neurons. C) The dorsal root ganglion is a motor-only structure. D) The cell bodies of afferent ganglia are located in the spinal cord.