Upstroke of action potential would lead to________________?
Correct answer: C. Cell interior becomes less negative
- A. Net current in an outward direction
- B. Cell interior becomes more negative
- C. Cell interior becomes less negative
- D. None of the above
Explanation
The upstroke results mainly from rapid Na+ entry, making the cell interior progressively less negative and then positive. This is depolarization, not an outward net current.
Last updated
Practise Neurophysiology
64 free Neurophysiology MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physiology questions like this
Physiology is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
Pain sensation from the lateral extremities is transmitted by________________?
Preganglionic parasympathetic fibers are_______________?
Tremors are seen in disorder of_________________?
The Sensory receptors serving the stretch reflex are classified as___________?
Abdominal visceral pain is transmitted by ________________?