models: Reproductive System

slides: Respiratory System

Wall of Trachea- lumen (right), mucosa (ciliated pseudostrat columnar ep w goblet cells), submucosa ( white layer, red splotchy (tubules + ducts that are part of the glands), white layer), adventitia (dense ct) with it's hyaline cartilage (NEVER IN WALL OF ESOPHAGUS), in esophagus would be muscularis externa (smooth muscle)


Mucosa of last slide- lumen (right), ciliated pseudostrat columnar ep with goblet cells, basement membrane that they are sitting on (whitish stain)

Lung Tissue- alveolar sacs, alveolar ducts, arteriole (bottom leftish center)  with smooth muscle + blood cells in it 

Alveoli individ to show caps (hard to find) 

Human lung- alveoli (right side), upper tube blood vessel, layers of smooth muscle + simp squam ep around it, lower tube is bronchial (lined with respiratory epith: cuboidal or columnar)

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models: Respiratory System

Pig Dissection

pulling intestine- attached by thin membrane Mesentery, attached to back wall of pig. how intestines are supported in abdominal cavity.

under liver, stomach, membrane connects the two- lesser omentum

slides: Digestive System

Esophagus- strat sq epith (closest to lumen), submucosa (CT) doesn't have all the glands like the trachea, smooth muscle

Esophagus- know it is not trachea bc it is not ciliated pseudo strat columnar ep


Esophagus- strat sq epith, connective tissue underneath, next layer is smooth muscle, NOT cartilage (like in trachea)

Ileum- (small intest), mucosa with villi (upper layer) simp columnar ep, CT inbtwn filling up meat inbtwn villi is lamina propria, muscularis mucousa (tricky to see) is under as a straightish line really thin layer of smooth muscle, submucosa is white and lightly tinted layer thick, muscularis externa is bottom layer but it has been broken 

Another at higher mag- serous memb bottom

slides: Digestive System

Intestine wall- he rotated it twice so that yellow hairs are in bottom right corner, top= surface (crypts) mucosa, epithelium is going up and down, columnar cells line the nook near crypts, lamina propria under mucosa, then submucosa with blood vessels and stuff, pink is muscularis externa circular layer, yellow is longitudinal layer, cells inbtwn the 2 layers are neurons of myentary plexus of averbach, 

Duodenum- mucosa is upper layer with fingers, second layer is submucosa with glands CT, muscularis externa first layer in it is circular layer then longitudinal layer

Salivary Glands (exocrine)- white big circle things are ducts (simp or strat cuboidal, secretory cells (dark= serous cells, lighter= mucous cells)

Closeup- stratified cuboidal around lumen looking things, mucus cells are more mucusy looking inside, serous demilune (middle of slide), vein is the red thing

transition btwn Esoph + Stomach- lumen, mucosa- strat squam and then simple columnar, submucosa, muscularis

models: Digestive System