Physiology Concentration of sodium channel in nerve in per square foot is A 1.6 x 10-5 to 1.9 X-2 per square foot B 6.6 x 10-6 to 3.9 X-3 per square foot C 1.6 x 10-6 to 1.9 X-3 per square foot D 6.6 x 10-5 to 3.9 X-2 per square foot 💡 Explanation Concentration of sodium channel in nerve in per square foot is ✓ Correct Answer: D. 6.6 x 10-5 to 3.9 X-2 per square foot