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12 Cards in this Set

  • Front
  • Back
What type of tissue forms the mucosa of the esophagus?
non-keratinized stratified squamous epithelium
What supports the mucosa of the esophagus?
The lamina propia
Yhe lamina propia, the loose connective tissue layer, is seperated by the submucosa by what?
by smooth muscle, also called muscularis mucosa
What glands are in the submucosa?
small mucous glands whose long ducts empty into the esophageal lumen
Around the submucosa, is a 2-layer muscle coat. What is the inner layer?
closely wound circular muscle
Around the submucosa, is a 2-layer muscle coat. What is the outer layer?
longitudinal muscle
What type of muscle comprises these two layers in the upper esophagus?
striated muscle
The striated muscle of the esophagus runs from the pharynx to approximately what level?
The level of the aortic arch
What happens to the striated muscle, the circular layer surrounding the submucosa and then the longitudinal layers surrounding the circular layers at the level of the aortic arch?
It gradually transitions into smooth muscle
What layer surrounds the outside of the esophagus?
the adventitia, containg many elastic fibers
What is not surroundeding the outside of the esophagus, unlike the rest of the digestive tract
There is no serosa
where did we end
disc 3
track 2
01:42