Oral cavity and Salivary Glands... It's not just talk

Oral Cavity: *pictures later tonight*

Enamel
Dentin
Pulp
Pulp Cavity
Cementum- between dentin and peridontal ligament
Cementocytes- produces cementum
Odontoblasts- produces dentin
Peridontal Ligament- between dentin/gingiva
Papillae-
Taste buds-contain gusta sustentacular cell
Taste Pores- where bud enters space near papillae
Gustatory cells-
Sustentacular cells-

Dentin



Taste Buds



Taste Pores


Salivary Glands:
Parotid-
Submandibular or sublingual gland-
mucous cells-
serous demilunes- clump of light stained mucous cells with a mucous "hat"
lobules-
intralobular duct-
interlobular duct-

Salivary Parotid Gland-


Salivary Submandibular Gland


Salivary Sublingual gland


Intralobular duct


Interlobular duct (see pointer end)

Liver and Gallbladder... where the fat really goes... It's not your hips

SIU Med histo site labeled

Liver terms to know:
Lobule


Portal Triad
Bile Duct
Hepatic Portal Vein and branches- circular or oval lined with simple squamous cells

Hepatic artery and branches- circular or oval with stratified squamous cells and a smooth muscle ring

Central Veins
Sinusoids

Bile Cannaliculi
Hepatocytes


Gall Bladder
Similar to stomach
irregular folded mucosa with disorganized muscularis externa

Stomach, are you hungry?

Stomach what to know:

Rugae
Oblique muscle layer
Gastric pits- areas between inlets
Gastric glands- far lower than pits
Mucous epithelial cells- line top area (unlike goblet cells NOT mixed with regular cells)
Parietal cells- look like fried eggs with a darker center
Zymogenic "chief" cells- all others in gastric gland

*hint* NO villi, NO goblet cells





Most of the bulk of the gastric mucosa is occupied by secretory cells of the gastric glands, primarily parietal cells (P) and chief cells (C), together with lamina propria.

Duodenum thru Colon histo- Oh no... they're all a like

Duodenum:

Brunner's glands
Plicae Circulares

*hint* duodenum contains villi



jejunum:

*hint* long skinny villi and NO Brunner's glands



Ileum:
Peyer's patches

*hint* short squat villi, many goblet cells, lots of lymphatic tissue, few plicae circulares





Peyer's patches clearly shown here


Appendix

*hint* no villi, many goblet cells, fecal concretions, diffuse lymphatic tissue

Lab slides live in your PC- or MAC

KU has the most comprehensive histology easy to cruise through and get all the photos you need. A large number of the histo pics here are from KU... they are labeled as such.

online histo slides

University of Illinois school of Medicine site histo

Try and figure a few out.... or see above posts with hints