Homework-Lecture 4
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Question 1 of 25
1. Question
•Which of the following is related to the resting potential ?
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Question 2 of 25
2. Question
All the following ions are found inside and outside the nerve cell except ……
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Question 3 of 25
3. Question
• Which of the following graphs represents the relation between the speed of nerve impulse propagation (Y) and the diameter of nerve fiber (X) ?
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Question 4 of 25
4. Question
From the information in the opposite table that is about axons of three nerve cells, which choice in the following table represents the probable speed of passing the nerve impulse in each of them ?
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Question 5 of 25
5. Question
Which of the following figures represents the flow of a larger amount of ions during the period (A : B) of the nerve impulse on the opposite graph ?
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Question 6 of 25
6. Question
A phase that opens potassium channels and closes sodium channels
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Question 7 of 25
7. Question
By analyzing the values written in the opposite table, what would the ions X, Y and Z respectively?
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Question 8 of 25
8. Question
•Which of the following arrangements is correct?CorrectIncorrect -
Question 9 of 25
9. Question
From the opposite graph, which of the following figures expresses the period of time between the two points (X) and (Y) ?
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Question 10 of 25
10. Question
•Fat material that form the insulating layer around the axon is called ………..CorrectIncorrect -
Question 11 of 25
11. Question
•From the opposite figure, at which point do polarization and depolarization happen ?CorrectIncorrect -
Question 12 of 25
12. Question
•When the potential difference reaches (- 80 mV) on the two sides of nerve fiber membrane, this phenomenon is called the ……….CorrectIncorrect -
Question 13 of 25
13. Question
•from the opposite figure, which of the following occurs to region (Y), on reaching the change that happened at region (X) to itCorrectIncorrect -
Question 14 of 25
14. Question
•The opposite figure illustrates a part of nerve fiber during stimulation, which of the following represents the correct arrangement of the ions movement and the direction of nerve impulse ?CorrectIncorrect -
Question 15 of 25
15. Question
Which of the following figures where the shaded part in it represents the state of nerve fiber membrane when propagating the nerve impulse from the resting state ?
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Question 16 of 25
16. Question
•the opposite figure, when stimulating this nerve cell at point (Y), the nerve impulse transmits to the neighboring nerve cell through .CorrectIncorrect -
Question 17 of 25
17. Question
•The speed of nerve impulse transmission depends on each of the following, exceptCorrectIncorrect -
Question 18 of 25
18. Question
•from the opposite figure, which of the following is applied on the region (A) ?CorrectIncorrect -
Question 19 of 25
19. Question
•Potential difference in the nerve cell returns to (-70 mV) after the stimulation, due to the increase in its permeability to ……….. ions.CorrectIncorrect -
Question 20 of 25
20. Question
•The opposite graph represents two nerve cells, one of them is sensory and the second is motor in the same living organism, and each of them is in a stimulation state :• Which of the following statements is correct at time (0)CorrectIncorrect -
Question 21 of 25
21. Question
•The opposite graph represents two nerve cells, one of them is sensory and the second is motor in the same living organism, and each of them is in a stimulation state :•The change in the potential difference of the sensory neuron membrane at time period (0 – 1) is attributed to theCorrectIncorrect -
Question 22 of 25
22. Question
•The opposite graph represents two nerve cells, one of them is sensory and the second is motor in the same living organism, and each of them is in a stimulation state :•At point (Y), the ……CorrectIncorrect -
Question 23 of 25
23. Question
•The potential difference on the two sides of nerve fiber membrane after stimulation changes to reach (+40 mV), due to ……..CorrectIncorrect -
Question 24 of 25
24. Question
•from the opposite figure :•The state of the nerve fiber membrane at the two regions (B) and (C) is……….. Respectively.CorrectIncorrect -
Question 25 of 25
25. Question
•from the opposite figure :•The permeability of the nerve membrane at the region (A)CorrectIncorrect