Histology Embryology Enteric nervous system Mainly components 100 million neurons! (as many as the spinal cord) e unmyelinated nerve fibers controlling the muscles, glands and having sensory info o Muscularis external: Myenteric nerve plexus o Submucosa: Submucosal nerve plexusEnteric nervous system: – Mainly components: • 100 million neurons! (as many as the spinal cord) • unmyelinated nerve fibers – controlling the muscles, glands and having sensory info • Muscularis external: Myenteric nerve plexus • Submucosa: Submucosal nerve plexus