Adding high potassium solution 50mm to smooth muscle


Adding high potassium solution (50mM) to smooth muscle organ(uterus, bladder, stomach) results in a large contraction. Why?

Key Notes:
1. Ca2+ is the link
2. Ca2+ moves through through voltage-gated Ca2+ channels
3. A change in voltage (a change in membrane potential,depolarisation) stimulates those channels
4. The change in K+ concentration causes depolarisation. How?

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Biology: Adding high potassium solution 50mm to smooth muscle
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