Kao asked in 科學生物學 · 1 decade ago

生理學題目 心室肌肉細胞膜電位

負責心室肌肉細胞膜電位負責維持在resting potential之主要離子通道是

1 Na+ channel

2 Ca2+ channel

3 K+ channel

4 leak channel

請加以解說 謝謝

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  • 1 decade ago
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    4 leak channel

    因為該 channel對鉀離子的通透性高於鈉離子,所以鉀離子會受胞內附電荷吸引而influx,並將resting membrane potential維持在較負的狀態。

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