Which of the following is NOT true of the myelin sheath?

A) The myelin sheath increases the speed of nerve impulse conduction.
B) The myelin sheath is an electric insulator.
C) The myelin sheath forms a wrapped coating around both axons and dendrites.
D) The myelin sheath is part of a living cell.
E) All of these are true of the myelin sheath.

Myelin Sheath

A fatty layer that surrounds nerve fibers, providing insulation and enhancing electrical transmission along the neuron.

Nerve Impulse Conduction

The process by which electrical signals are transmitted along a nerve fiber, facilitating communication between the brain and different parts of the body.

Electric Insulator

A material whose internal electric charges do not flow freely, making it capable of preventing the passage of electric current.