Pharmacology Flashcards
1
Q
What is depolarisation?
A
The membrane potential becomes less negative
2
Q
What is hyperpolarisation?
A
The membrane potential becomes more negative
3
Q
The direction of the charge in potential is dependent on what?
A
- the direction of the movement of the ion (influx and efflux)
- the charge carried by the ions ( +ve or -ve)
4
Q
What are action potentials?
A
Brief electrical signals in which the polarity of the nerve cell membrane is momentarily reversed