What are glial cells primarily responsible for in the nervous system?

Glial cells play an essential role in the nervous system primarily focused on supporting and nourishing neurons. Unlike neurons, which are responsible for transmitting signals and processing information, glial cells provide critical support functions that are vital for neuronal health and function. These cells help maintain homeostasis, form myelin (which insulates neuronal axons), and provide structural support.

Additionally, glial cells serve as a framework that holds neurons in place, helps with nutrient transport, and provides protection by clearing away debris and pathogens. By ensuring that neurons are well-supported and nourished, glial cells contribute significantly to the overall functionality of the nervous system, allowing it to operate effectively.

Other listed responsibilities such as sending signals between neurons, processing sensory information, and regulating motor skills are primarily handled by neurons themselves, highlighting the distinct but complementary roles that glial cells and neurons play in the nervous system's overall operation.