The formation of myelin in the peripheral nervous system is accomplished by these cells
A) satellite cells B) oligodendrocytes C) Schwann cells D) astrocytes
Answer: C
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During contraction of heart muscle cells ________
A) all of the calcium required for contraction comes from storage in the sarcoplasmic reticulum B) some calcium enters the cell from the extracellular space and triggers the release of larger amounts of calcium from intracellular stores C) calcium is prevented from entering cardiac fibers that have been stimulated D) the action potential is prevented from spreading from cell to cell by gap junctions
Of the 20 amino acids, ________ are essential amino acids that the body either cannot synthesize or that cannot be produced in amounts sufficient for growing children
A) 2 B) 6 C) 8 D) 10 E) 20
Megan thinks she has a great new way to help her remember her anatomy notes. She wears a certain perfume only when she studies for the exam and the day of the exam. What is Megan attempting to stimulate in this exercise?
A. The insula B. The Broca area C. The primary sensory area D. The secondary olfactory areas of the brain
To fill the valence shell, an electrically neutral, unbonded atom with atomic number 8 must add
What will be an ideal response?