QuestionSBA
QuestionChoice
Ca2+ ions are not involved in the hyperpolarisation of a neurone.
10005209
d
Ca2<sup>+</sup> efflux
QuestionChoice
This is the cause of depolarisation, not hyperpolarisation.
10005207
b
Voltage-gated Na<sup>+</sup> channels open
QuestionChoice
In an inhibitory response, the impulse would cause a Cl<sup>-</sup> **influx** to hyperpolarise the cell membrane
10005210
e
Cl<sup>-</sup> efflux
QuestionChoice
This is what allows the process of repolarisation to occur.
10005208
c
Voltage-gated Na<sup>+</sup> channels close
QuestionChoice
The membrane potential lowers more than the resting potential because of the delayed closing of the voltage-gated K+ channels, allowing more K+ ions to leave the membrane.
10005206
a
Due to excess K<sup>+</sup> efflux
Concept
Chapter
2693
3822
Membrane Potential
Topic
152
Neuroscience
13588
How does hyperpolarisation occur during an action potential?
a