Sphenopalatine Ganglion (SPG) Nerves!

What are SPG Nerves?

SPG nerves or the sphenopalatine ganglion are a bundle of nerves located on the roof of your mouth. These nerves are very sensitive to cold things. This is what causes a brain freeze. The SPG nerves can actually make your blood vessels in your brain expand when the nerves get cold! SPG nerves are important for our survival because they actually regulate our body temperature. They are what makes humans and other mammals warm-blooded.

Why do Scientists Study SPG Nerves?

The SPG nerves are also involved in migraine and cluster headaches. Migraines and Cluster headaches are very painful headaches that last longer. They are when the SPG nerves get damaged and the blood vessels expand and contract in your skull rapidly. Studying these nerves will help scientists create medicines for Cluster headaches and Migraines.