Question

which of the following statements regarding neuroglial cells is not true?
a neuroglial cells conduct electrical impulses.
b some neuroglial cells produce myelin.
c there is a variety of types of neuroglial cells.
d neuroglial cells provide support for the neurons.

Explanation:

Neurons, not neuroglial cells, conduct electrical impulses. Neuroglial cells have roles like support (D), some produce myelin (B - oligodendrocytes in CNS, Schwann cells in PNS), and there are multiple types (C - astrocytes, oligodendrocytes, microglia etc.).

Answer:

A. Neuroglial cells conduct electrical impulses.