GI System Intro - Unit 1

Objectives:

A. Develop an understanding of the basic morphologic structure of the wall of digestive tube.

B. Correlate morphologic modifications in the basic pattern of G-I tract with specific functions.

C. Describe the gross anatomic relationships of the major organs comprising the digestive system in mammals.

D. Describe basic morphologic features and identify histologic sections of the following organs and/or structures:

1. buccal wall
2. tongue
4. salivary glands
5. esophagus
6. simple (monogastric) stomach
7. ruminant forestomachs (rumen, reticulum, and omasum)
8. small intestine (duodenum, jejunum, and ileum)
9. large intestine
10. anal glands

Slides:

#139            Lip & buccal wall of heifer

#143            Developing tooth

#144            Tongue from a dog

#145            Tongue from a cat

#147            Tongue from a cow

#148            Tongue from a rabbit

Gasterointestinal system Terms:

buccal glands
conical papillae
stellate reticulum
tongue
taste pore
hypoglossal nerve
filiform papillae
fungiform papilla
foliate papillae
taste buds
vallate (circumvallate) papillae
gustatory glands
parotid gland
serous demilune
serous glands
acinus
serous acinus
mucous acinus
mucoserous (mixed) acinus
striated (secretory) salivary ducts
Intercalated ducts
interlobular (non-secreting) duct
myoepithelial cells
mandibular gland
tunica submucosa
tunica mucosa
tunica muscularis
tunica serosa/adventitia
muscularis mucosae
esophagus
stomach
gastric pit
gastric gland
esophageal-cardiac junction
cardiac stomach
fundic stomach
mucous neck cells
parietal cells
chief cells
enteroendocrine cells
pyloric stomach
rumen
papillae (of the rumen)
reticulum
omasum
duodenum
submucosal tubuloacinar (Brunner's) glands
paneth cells
goblet cells
jejunum
villi
lacteals
ileum
M-cell
myenteric plexus (of Auerbach)
submucosal plexus (of Meissner)
large intestine
intestinal crypts
simple tubular intestinal glands (in intestinal crypts)
cecum
taeniae ceci
anal glands
anal sac
circumanal glands
internal anal sphincter
perisaccular glands
rectum
perianal sinus
hepatoid (deep) glands
sudoriferous glands
superficial sebaceous glands
anal sphincter