Describe the role of glial cells in the nervous system.

Glial cells play a crucial role in the nervous system by providing both structural and metabolic support to neurons. Unlike neurons, which are primarily responsible for transmitting signals and processing information, glial cells perform various supportive functions that are essential for the proper functioning of the nervous system.

These cells help maintain the homeostasis of the neural environment, ensuring that neurons receive the nutrients and oxygen they need to operate efficiently. They also assist in the repair and maintenance of nervous tissue, contribute to the formation of myelin sheaths that insulate axons, and help in the regulation of neurotransmitter levels in the synaptic cleft, thereby influencing communication between neurons.

Overall, glial cells are integral to maintaining the health and functionality of the nervous system, acting as caretakers for neurons and ensuring that they can carry out their signaling roles effectively.