Myelin
A. is released from a neuron and travels to another neuron.
B. is produced in response to bacterial infection.
C. is a form of chromatophilic substance that fills Schwann cells.
D. consists of layers of lipids and proteins that wrap around an axon.
Answer: D
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During its embryological development, the autonomic nervous system forms from
A. neural tube cells. B. neural crest cells. C. both neural tube cells and neural crest cells.
All of the following are guidelines for cleaning the oil-immersion lens EXCEPT which statement?
A) Place a drop of lens-cleaning solution on the paper and completely remove any remaining oil. B) Use a lens tissue to wipe the oil off the lens. C) Use the coarse focus knob and move the objective lens away from the slide to create a working space for cleaning. D) Use a paper towel to wipe the oil off the lens.
Which of these muscles is NOT capable of elevating the scapula?
A) levator scapulae B) pectoralis minor C) rhomboideus D) trapezius
The hand is also known as the:
A) plantar region. B) manual region. C) acromial region. D) pedal region.