| A | B | 
| Mucosa | Innermost tunic, consists of a mucous epithelium, a lamina propria, & a muscularis mucosae. | 
| Submucosa | 2nd innermost tunic, Connective Tissue layer containing the sibmucosal plexus(part of the enteric plexus), blood vessels, and small glands. | 
| Muscularis | 2nd outermost tunic, consist of inner layer of circular smooth muscle & an outer layer of longitudinal smooth muscle, the myenteric plexus is between the two muscle layers. | 
| Serosa or Adventitia | Outermost tunic of the digestive tract, consist of Connective tissue layer & Peritoneum. | 
| In what tunic are the Lymphatic nodules found? | Mucosa | 
| In what tunic are the blood vessels found? | Serosa or Adventitia | 
| In what tunic are the glands found? | Submucosa | 
| In what tunic are the gland ducts found? | Mucosa | 
| In what layers can you find nerves? | Muscularis & Serosa or Adventitia | 
| What makes up the Enteric Plexus? | Myenteric & Submucosal plexus. | 
| In the upper esophagus portion of the Muscularis the muscles are? | Striated | 
| In the stomach the Muscularis has? | 3 layers of smooth muscle |