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10) In a neuron, where is the greatest concentration of voltage-gated sodium and voltage-gated potassium channels?A) dendritesB) somaC) axon hillockD) axonE) axon terminalAnswer: CDiff: 4 Page Ref: 1692
11) In a neuron, where are voltage-gated calcium channels located?EDiff: 3 Page Ref: 16912) What is the structural classification of a neuron composed of a single axon and a number of dendritic projections from the nerve cell body?ADiff: 4 Page Ref: 17113) Which of the following is a functional classification of neurons that, for the most part, are bipolar in structure and carry information from the peripheral axon to the central axon?CDiff: 5 Page Ref: 17214) Which of the following terms is NOT used to describe a bundle of axons in the central or peripheral nervous system?A) gangliaB) pathwaysC) tractsD) nervesE) commissuresAnswer: ADiff: 4 Page Ref: 17115) Which of the following cells is NOT classified as a glial cell? EDiff: 5 Page Ref: 1723
16) What type of cell enhances the velocity of electrical transmission of an action potential alongan axon in the central nervous system?ADiff: 5 Page Ref: 17217) Which of the following best describes the function of the myelin sheath?EDiff: 5 Page Ref: 17218) Which of the following is the correct term for the movement of an electrical charge across a membrane?A) resistanceB) currentC) potential differenceD) transistorE) capacitanceAnswer: BDiff: 5 Page Ref: 17419) Which of the following determines the resistance to an ion's movement across a membrane?BDiff: 4 Page Ref: 174