Question

D SCAN MATCHING 1. Depolarization 2. Action potential 3. Threshold 4. Repolarization 5. Relative refractory period 6. Absolute refractory period 7. Resting membrane potential 8. Continuous conduction 9. Saltatory conduction Choices A. a cell whose internal environment has an electrical charge equal to its external environment B. the process of a cell becoming positively charged C. the process of a cell becoming negatively charged D. an electrochemical change in the potential across a membrane that causes an electrical signal to travel along that membrane E the ability of a cell to respond to a stimulus F. an electrical voltage difference across a neural mem-brane of an unstimulated cell in which the internal environment is more negative than the external environment G. the lowest voltage reached by a depolarizing neuron that can cause an action potential to occur H. the influx of this ion causes depolarization 1. the efflux of this ion causes depolarization J. the influx of this ion causes repolarization K the efflux of this ion causes repolarization L the time when a very strong stimulus cannot initiate a 2ND action potential in an excited neuron M. the time when a larger-than-normal stimulus can initiate a 2ND action potential in a stimulated neuron N. the leaping propagation of an impulse across the nodes of Ranvier due to the uneven distribution of volt- age-gated channels 0. the unbroken propagation of an impulse across an axon as a result of depolarization-repolarization se- quences next to one another P. a phenomenon in which the following happens. If a neuron can depolarize a little-beneath threshold, it will not generate any action potential. But if it reaches a certain level of depolarization, it will generate a full action potential. 10. Potassium 11. Sodium 12. All-or-none 13. Excitability

Answer 1

1. depolarisation : D

2 action potential : F

3.Threshold: G

4 Repolarisation: B

5. Relative refractory period: M

6. absolute refractory period: L

7.Resting membrane potential : A

8. continuous : O

9. Saltory conduction : N

10. Potassium : K

11. sodium : H

12. All or none : P

13. Excitability : E