The thickness of a single membrane is about 7 nm. A myelin sheath consists of multiple membranes produced by coils of Schwann cell or oligodendroglia cells. Suppose a myelin sheath results from 100 membranes stacked on top of each other.

A) What is the specific capacitance of the myelin?

B) If the myelin sheath is a right circular cylinder 1 mm long, what is its total capacitance?

C) How much charge does it take to produce a voltage of -70 mV across this capacitor?

D) If the myelin were just 1 membrane--i.e, not myelin--what would be its capacitance? How much charge would it take to produce a voltage of -70mV across the single membrane?

Answer rating: 100% (QA)

A The specific capacitance of biological membrane including myelin is a well established and accepte... View the full answer