The nervous system has two major parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The central system is the primary command center for the body, and is comprised of ...

The central nervous system is made up of the brain and spinal cord. ... Along its length, it connects with the nerves of the peripheral nervous system (PNS) that run in from the skin, ...

The sympathetic nervous system (SNS) is part of the autonomic nervous system (ANS), which also includes the parasympathetic nervous system (PNS). The sympathetic nervous system activates what is ...

Reference: Wu Z, Wang Y, Chen W wei, et al. Peripheral nervous system microglia-like cells regulate neuronal soma size throughout evolution. Cell. 2025. doi: 10.1016/j.cell.2025.02.007. This article ...

A dermatome is a distinct area of your skin defined by its connection to one of 30 spinal nerves. We’ll explore more about both your spinal nerves and dermatomes, including a chart showing each ...

In humans, axons of the peripheral nervous system (PNS) are capable of regeneration, whereas those of the central nervous system (CNS) are currently viewed as incapable of regeneration. This ...

4) Peripheral nerves are much slower than you thought. Pain fibers, like those that carry bad news from your big toe to your CNS, conduct nerve impulses at a leisurely 2 miles per hour. You can ...

More information: Pabitra K. Sahoo et al, Disruption of G3BP1 granules promotes mammalian CNS and PNS axon regeneration, Proceedings of the National Academy of Sciences (2025). DOI: 10.1073/pnas ...