Examlex
Which of the following poses the greatest threat for the development of lung cancer among nonsmokers?
Axon
A long, slender projection of a nerve cell that typically conducts electrical impulses away from the neuron's cell body.
Dendrite
Short branched extensions of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
Myelin Sheath
A fatty layer that surrounds the axons of some neurons, enhancing the speed of electrical signal transmission.
Node of Ranvier
A gap in the myelin sheath of a nerve fiber that facilitates rapid conduction of nerve impulses along the axon through saltatory conduction.
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