Question

Which of the following is NOT a function of neuroglial cells?

A. Maintaining the chemical environment
B. Formation of myelin sheaths
C. Removal of cellular debris
D. Conduction of electrical signals
E. None, all of the above are functions of neuroglial cells
RATIONALE: Neuroglial cells exist in both the PNS and the CNS. They are specialized for the support and regrowth of neurons. Neuron cells conduct and transmit electrical signals.

Answer 1

Neuroglial cells do not conduct electrical signals; this is the primary function of neurons. Glial cells support neuron functions by maintaining the chemical environment, forming myelin sheaths, and removing debris.

Step-by-step explanation:

The function that is NOT performed by neuroglial cells, also known as glial cells, is conduction of electrical signals. The various types of glial cells, including astrocytes, oligodendrocytes, microglia, Schwann cells, and ependymal cells, perform supportive roles for the neurons in both the central nervous system (CNS) and peripheral nervous system (PNS). These roles include maintaining the chemical environment, forming myelin sheaths, and removing cellular debris. Conduction of electrical signals, however, is the primary role of neurons, not glial cells.