Here’s the correct matching of the words to the appropriate phrases:
Ion distribution between the intra- and extracellular fluid
Returned (The ion distribution refers to the movement and balance of ions, like K+ and Na+, between inside and outside the cell. When ions move across the membrane, they contribute to the resting membrane potential.)
Although it plays a role, it is not a primary determinant of the resting membrane potential
Returned (This phrase refers to other factors, like sodium-potassium pumps, which are important but not the primary factor.)
The point at which there is no net movement of K+ into or out of the cell
Target 2 of 4 (The "equilibrium potential" for potassium is the point where K+ no longer moves in or out of the cell, as the electrical and chemical gradients balance each other.)
The primary determinant of the resting membrane potential
Target 3 of 4 (The main determinant of resting membrane potential is usually the concentration gradient of potassium, as the membrane is more permeable to potassium ions.)
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