The image shows a sympathetic ganglion which is located along the sympathetic chain that runs along each side of the vertebral column. The ganglia form connections and circuits with different part of your brain, allowing them to send signals back and forth. They deliver information to the body about stress and impending danger, and are responsible for the familiar fight or flight response by transmitting signals to various organs and tissues.

The sympathetic ganglion is a collective term used to describe nerve cell bodies found in the sympathetic nervous system. It is also known as paravertebral ganglia. They primarily function in relaying information related to stress and danger, enabling the body's fight-or-flight response. The sympathetic ganglion is located close to and on either side of the spinal cord, forming a chain that extends from the neck down to the coccyx. The microscopic photo shows a longitudinal section of the sympathetic ganglion.