ANAT 261 Lecture : 11. Esophagus and Stomach.pdf
Document Summary
Before we discuss the esophagus in particular, it would be useful to make a general plan of the digestive tract starting with the esophagus and ending in the large intestines. The mucosa is made of three layers: the epithelium, the cell make-up changes depending on the structure, the lamina propria is made of loose irreg. Ct: the muscularis mucosae is made of 2 layers of. The inner layer is circumferential and the outer layer runs in parallel with the organ. Cutting a cross section of the organ, the inner layer will be in long. section and the outer layer in cross section. The submucosa is either loose or dense irreg. Ct which can vary in thickness depending on the organ. The last layer is the serosa, or the adventitia, which is dense irreg. Note that just like in any other system we studied, these components are not present everywhere.