Calcium is unique among metals because its ions have a very large concentration gradient across the plasma membrane of all cells, from 10 â3 M Ca 2+ outside, to 10 â7 M Ca 2+ inside.
Originally Posted by Quinne. I think it has a lot to do with motives.... What I learned through studying Alcohol & other Drug work is that in counselling terms, a lapse is a hiccup and a relapse is full-blown return to old behaviours, as well as active addiction.
For me, a conscious decision to take a drink or put alcohol in my body is a relapse, not a lapse, but we can argue about semantics for days. If, however, I accidentally ingest alcohol (say I pick up the wrong cup or glass at a party and take a sip) then I do not consider that a relapse.