Q:

Which of the following statements about the action potential is FALSE ?

waelhammad
Save to bookmark
|
2022-10-19
|
  88 
0

Which of the following statements about the action potential is FALSE ?

  1. The action potential lasts about four milliseconds.
  2. It is triggered by anions crossing the cell membrane
  3. The sequence: ‘Na ions moving in, K ions moving out’ constitutes the action potential.
  4. Repolarisation follows depolarisation of the cell membrane.
Medicine, textbook solutions, MCQ Questions, Medicine textbook-solutions, Medicine MCQ-questions,
login and add your own answer to this question

All Answers

waelhammad
2022-10-19
need an explanation for this answer? contact us directly to get an explanation for this answer

B: Anions (+ve ions) crossing the membrane is the fi rst part of the action potential, but this movement is triggered by a graded potential that is above threshold arriving at the start of the axon (the axon hillock). So choice D is false. 

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

Similar questions

need a help?

find thousands of online teachers now