Muscularis externa: Myenteric plexus
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
Mucosa
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
Submucosa
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
Muscularis externa
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
- Inner circular layer
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
- Outer longitudinal layer
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
Myenteric plexus
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
- Ganglia
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
- Neurons
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
- Unmyelinated axons
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
- Supporting cells
The myenteric plexus is the second and larger component of the autonomic innervation of the digestive tract. Like the submucosal plexus, it consists of neurons in ganglia that are interconnected by a network of unmyelinated axons. This plexus innervates both layers of the muscularis externa from the esophagus to the rectum and is principally responsible for peristaltic movements and segmentation (mixing). 10x, 600x
Image source >
The image was taken of a slide in the University of New England College of Osteopathic Medicine slide collection.
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