VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesHuman Body & HealthQuestion
Question
Human Body & Health

Which outcome results when blood potassium concentration decreases significantly?

A)Muscular and neural excitability increases
B)Action potential threshold strongly elevates
C)Resting membrane rapidly depolarizes
D)Sodium-potassium pump activity halts

💡 Explanation

Hypokalemia decreases extracellular potassium, causing hyperpolarization via increased potassium diffusion out of cells. Consequently, action potential threshold elevates because cellular excitability decreases; therefore, stronger stimuli is needed triggering activation, rather than depolarization risks arising.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse Human Body & Health