E62 BME 140 Lecture 8: BME Week 8
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18 Oct 2015
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Which of the following statements is FALSE? (choose one)
A. | Voltage-gated sodium (Na+) channels open in the dendrites and cell body during a local, graded potential. |
B. | During repolarization, potassium ions are leaving the cell (K+ is diffusing out of the cell), and the inside of the cell becomes more negative |
C. | If someone damaged an efferent motor neuron, they could feel pain, but not respond to move away from the pain |
D. | Myelin serves as electrical insulation and increases the speed at which an action potential travels along the axon |
E. | Movement of ions can be excitatory (if sodium ligand-gated channels bind the neurotransmitter), or inhibitory (if potassium ligand-gated channels bind the neurotransmitter) |