When a nerve fiber is stimulated, positively charged sodium ions move outside the axon?

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Isn't that false?

2007-03-08 10:07:50 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology

Yes, that is false.

Sodium ions move into the axon, depolarizing the neuron. Then potassium ions move out, repolarizing it.

2007-03-08 10:10:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Exactly. Na+ ions move through gated sodium channels from the outside of the axon to the inside, and K+ ions move from the inside to the outside.

2007-03-08 10:11:09 · answer #2 · answered by The Tridentine Avenger 3 · 0⤊ 0⤋

Yes, they move into the cell membrane.

2007-03-08 10:16:13 · answer #3 · answered by gymfreak 5 · 0⤊ 0⤋

2007-03-08 10:10:22 · answer #4 · answered by Anonymous · 0⤊ 0⤋