University:
Texas A&M University
Course:
BIOL 111 | Introductory Biology I
Academic year:

2022
Views:

149

Pages:

29
Author:

Lily Callahan

Stomach . muscularis mucosae (F-H-143)- Stomach, cat gastric pits stratum compactum lamina propria parietal cells chief (zymogenic) cells tunica muscularis lamina subglandularis submucosa (F-H-143)- Stomach, cat. CIRCULAR, LONGITUDINAL, CIRCULAR muscularis mucosae (three layers) muscularis mucosae stratum compactum Muscularis mucosae (F-H-143)- Stomach, cat. Not well defined stratum compactum muscularis mucosae (three layers) CIRCULAR, LONGITUDINAL, CIRCULAR chief (zymogenic) cells parietal cells Mucus neck cells Fundic stomach, rabbit (toluidine blue) Chief cells Parietal cell Enteroendocrine cells Stomach, dog. pyloric gland region. pyloric glands =MUCOUS Gastric pits thickened tunica muscularis = PYLORIC SPHINCTER solitary lymph nodules Stomach, dog. PROPER GASTRIC GLANDS HAVE PARIETAL AND CHIEF CELLS PRESENT PROPER GASTRIC GLANDS with PARIETAL AND CHIEF CELLS PRESENT Stomach, pig. PROPER: PARIETAL AND CHIEF CELLS PROPER Stomach, pig. CARDIAC CARDIAC: GLANDS HAVE CELLS WITH ROUND NUCLEI PYLORIC: GLANDS HAVE CELLS WITH FLAT NUCLEI the serous-type cells lining in pits and high density of lymphocytes PROPER PYLORIC sheep. PROPER Abomasum, spiral folds. Abomasum, goat. abomasum not taken from the proper gastric gland region as no chief or partial cells serosa Smooth muscle Of externa Abomasum, goat. Three layers of tunica muscularis Nerve cell body In submucosa nerve capillary Nerve cell body in tunica muscularis lymphatic venule muscularis mucosae arteriole chicken Esophagus, proventriculus, and gizzard, thick tunica muscularis SMOOTH MUSCLE gizzard = ventriculus stratified squamous epithelium simple columnar epithelium The proventricular glands in the lamina propria are the outstanding features of this organ. KOILIN Esophagus, proventriculus, and gizzard, chicken Esophagus gizzard proventriculus Proventriculus, chicken. lymphatic nodules Side of the gizzard / ventriculus submucosa layer is very thin Gizzard, chicken. gizzard = ventriculus tunica muscularis is very thick and has a “diamond appearance” simple tubular glands lined with simple cuboidal epithelium Submucosa diamond appearance” of tunica muscularis CCT thick koilin, secreted by the glands of the lamina propria. Gizzard, chick. muscularis mucosae is absent CCT is stained green (blue) tunica muscularis “diamond appearance” created by the CCT interlacing the tunica muscularis not seen in developing gizzard better seen in Demo slide 54a below Proventriculus, chicken. Gizzard Esophagus Proventriculus thick koilin, secreted by the glands Gizzard???, chicken Proventriculus thick koilin tunica muscularis “diamond appearance” created by the CCT interlacing the tunica muscularis not seen in developing gizzard Rumen, sheep. ruminal papilla Ruminant Forestomach tunica muscular is arranged in two distinct layers keratinized stratified squamous epithelium mesothelium serosa No muscularis mucosae is present submucosa Rumen, cow. papillae serosa The stratified squamous epithelium varies in thickness and the keratin is not readily seen tunica muscularis is composed of two layers of smooth muscle numerous papillae Rumen, sheep. numerous papillae keratinized stratified squamous epithelium Reticulum, steer. large projections are termed reticular crests, while the smaller ones are papillae. muscularis mucosae of the reticulum is incomplete no muscularis mucosae is present in the papillae. Reticulum, sheep . no muscularis mucosae is present in the shorter papillae. muscularis mucosae muscularis mucosae of the reticulum is incomplete in the reticular crests Reticulum, cow. muscularis mucosae of the reticulum is incomplete in the reticular crests serosa mesothelium Omasum, goat. mucosal projections of this compartment are quite long (“spider leggy”) and are termed omasal laminae muscularis mucosae is complete and strands of smooth muscle derived from the tunica muscularis are also present in the laminae. Omasum, cow. serosa tunica muscularis large muscular artery muscularis mucosae is complete nerve omasal laminae CCT unilocular adipose cells Omasum, cow. muscularis mucosae is complete and strands of smooth muscle derived from the tunica muscularis are also present in the laminae. Omasum, sheep. muscularis mucosae is complete omasal laminae

Stomach

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