GI Histology

Esophageal mucosa

Esophageal stomach junction

Esophageal stomach junction

Stomach

Duodenum

Velvet like

Jejunum

Ileum

Colon (large intestine)

Anorectal Junction

Anorectal junction

Rumen

Reticulum

Omasum

Abomasum

Bird tongue

Proventriculus

Ventriculus

jejunum

jejunum

jejunum

jejunum

Colon (large intestine)

Colon (large intestine)

Colon (large intestine)

Colon (large intestine)

rumen

reticulum

omasum

abomasum

ventriculus

tunica adventitia

The G.I. tract is covered superficially by a —

tunica muscularis, tunica submucosa, tunica mucosa

Superficial to deep (GI layers)

plicated

The esophagus is — to accommodate different sizes of food boluses

enterocytes

The tunica mucosa of the duodenum contains absorptive —

submucosa, ileum

The peyers patches are found in the — of the —

peyers patches

The — are found in the submucosa of the ileum

fibrous adipose tissue

The large intestine has — instead of peyers patches

simple columnar, stratified squamous

The rectum’s tunica mucosa is a — epithelium, which abruptly changes to — epithelium as we move into the anus

hardware disease

the reticulum is subject to a condition called —

papillae

the rumen contains rumenal —

rumen, reticulum, omasum, abomasum

The four divisions of the stomach in the ruminant, from anterior to posterior, are: the —, the —, the —, and the —. 

symbiotic organisms, cellulase

The luminal surfaces of the rumenal papillae are coated with black specks. These specks contain the — which produce the — enzymes.

foliae

The omasum (fig 12, 13) is formed from leaf like folds, also called —

proventriculus

The true glandular stomach of the bird is called the —

mucosal ridges

Rather than crypts, the villi in the Tunica mucosa of the proventriculus are arranged in —

adenomere

The gastric gland in birds is also called the —

ventriculus

Even though birds don't have teeth they still need to masticate their food before it moves into the small intestines. To accomplish this they have a region of the "gizzard". More formally this region is called the —

tunica muscularis

the ventriculus has a very thick —

pellicle

a thick cornified layer produced by the cells of the Tunica mucosa in the ventriculus

simple columnar or cuboidal

the ventriculus has — epithelium