this is going off what I remember from 10 years ago, but it's a cellular junction that only opens when the right ions are on each side

of the membrane

or, wiki

wow, thank u so much, are u a doctor?

no, just a former biology student

where do u come from?

right now, North Carolina in the US. went to school in Utah. what about you?

Me In Bekasi, a city in Indonesia, are you male or female?

female, and you?

male, do u have ym?add me "[email protected]"