Loading....
Coupon Accepted Successfully!

Physiology

Open Flashcards

Nerve Muscle Physiology

Question
21 out of 24
 

The true statement regarding the action potential in a nerve is:



A The depolarization is a result of outward movement of potassium ions

B The action potential occurs due to sudden opening of Na+ channels

C The action potential occurs when the potential reaches a threshold at —65 mV

D The resting membrane potential is —90 mV

Ans. B The action potential occurs due to sudden opening of Na+ channels

The action potential occurs due to sudden opening of voltage gated Na+ channels. The membrane potential of large nerves when they are not transmitting nerve signals, that is, when they are in the so called resting’ state is about 70 millivolts. Q

Nerve Muscle Physiology Flashcard List

24 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)