what makes up the lining mucosa?
lining epithelium, lamina propria, muscularis mucosa
what comes after the mucosa?
submucosa, muscularis externa, serosa OR adventitia
what is the plexus found in the submucosa?
what plexus is found between the layers of muscle making up the muscularis externa (i.e., between the inner circular and the outer longitudinal layers of the muscularis externa)?
Auerbach's Plexus (also termed the myenteric Plexus)
A cluster of lymph nodes embedded in the small intestine (ileum specifically)
large folds in the stomach are called:
large folds in the small intestine are called:
small projections into the intestines:
the esophagus is lined by a protective epithelium that is:
non-keratinized, stratified squamous
why is the base of the lining epithelium darker?
there is a lot of mitotic activity, producing daughter cells to produce those sloughed off
the first upper third of the esophagus is lined by ____ muscle
the middle third of the esophagus is lined by ____ muscle
smooth and skeletal
the lower third of the esophagus is lined by ____ muscle
cardiac glands of the esophagus are found at:
the junction of the esophagus and the stomach, between the cricoid cartilage and the fifth tracheal ring
is skeletal muscle at the top of the esophagus under voluntary control? Why?
no, innervated by parasympathetics from the vagus
what makes up the lining of the stomach?
simple columnar epithelium
all the glands in the stomach are found in the ____, which means they are above ___
lining mucosa, submucosa
there are ____ glands in the submucosa of the stomach
the major cells found in the base of the stomach glands are called ____
the second most common cell type found in the stomach glands are called _____
the third type of cell found in the neck of the stomach glands are called:
mucus neck cells
endocrine cells found on the periphery of the glands are called:
enteroendocrine glands, aka argentaffin cells