What is the primary function of neuroglia in the nervous system?

• A. To transmit electrical impulses
• B. To conduct sensory information
• C. To generate action potentials
• D. To support and protect neurons

Answer: (D)

Verified step by step guidance

1. Understand the role of neuroglia: Neuroglia, also known as glial cells, are non-neuronal cells in the nervous system that do not conduct electrical impulses like neurons do.
2. Identify the functions of neuroglia: These cells provide support and protection for neurons, maintain homeostasis, form myelin, and participate in signal transmission in the nervous system.
3. Differentiate between neurons and neuroglia: Neurons are responsible for transmitting electrical impulses and generating action potentials, whereas neuroglia support these functions by maintaining the environment around neurons.
4. Consider the types of neuroglia: There are several types of glial cells, including astrocytes, oligodendrocytes, microglia, and Schwann cells, each with specific roles in supporting neuronal function.
5. Conclude the primary function: Based on the understanding of neuroglia, their primary function is to support and protect neurons, rather than transmitting electrical impulses or generating action potentials.