Question

multiple choice question
fluid balance and nerve impulse transmission are functions of potassium and:
o iron
o sodium
o phosphorus
o magnesium

Explanation:

Sodium, along with potassium, plays crucial roles in maintaining fluid balance and nerve impulse transmission in the body. Sodium - potassium pumps are involved in generating and maintaining the resting membrane potential necessary for nerve impulse conduction, and both ions are important in regulating osmotic pressure for fluid balance.

Answer:

B. sodium