You have a friend is who engaged in weight training. They heard that bananas wer
ID: 3473848 • Letter: Y
Question
You have a friend is who engaged in weight training. They heard that bananas were high in protein and potassium. After training your friend ate 20 bananas every day until on the 3rd day your friend began to experience severe stomach cramps. During the doctors’ visit the patient was told that their potassium levels were off the chart. What affect could high extracellular potassium levels have on action potential dynamics?
Sodium concentrations inside the cell will increase
Potassium levels inside the cell will increase
Action potential spike will become more negative upon depolarization
Cell will not be able to undergo repolarization
No affect
A.Sodium concentrations inside the cell will increase
B.Potassium levels inside the cell will increase
C.Action potential spike will become more negative upon depolarization
D.Cell will not be able to undergo repolarization
E.No affect
Explanation / Answer
C.
The increase rate of potassium decreases the rate of re polarisation of the cardiac cell. Therefore, when a drug approaches the toxic range, the extracellular potassium lengthens the phase 3 of action potential.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.