Complete each sentence by dragging the labels to the appropriate blanks. Then pl

Question

Complete each sentence by dragging the labels to the appropriate blanks. Then place each sentence in a logical order beginning with the SA node in a resting state. steady leak fast calcium and sodium -60 mV -70 mV potassium channels massive influx action potential slow calcium The movement of potassium to the ECF repolarizes the membrane and returns the SA node cells to ______. Moving from -60 mV to a threshold of -40 mV, voltage-regulated _______ channels open. Unlike the membrane of neurons and skeletal muscle, resting potential of the SA node drifts upward due to a _______ of sodium ions to the ICF. Then, as in skeletal muscle and neurons, voltage-regulated _______ open and allow potassium to rush to the ECF. The depolarizing event of the ______ is caused by the rapid movement of sodium and calcium to the ICF.

Explanation / Answer

-60mV

fast calcium and sodium

massive influx

potassium channels

slow calcium channels

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.