workshops 1,2,3 Flashcards
Artery Vs Vein histology
Artery = Thick t. media (smooth muscle), usually round, may have elastin in t. media
* Vein = Thin wall, very little t. media, usually collapsed
Artery
artery
vein
artery
vein
artery
Think about surface area of the GIT membranes, which structures in the small intestine increase
surface area?
(Villi, microvilli, crypts)
(Large intestine)
(Small intestine
Large intestine
Stomach
stomach
(Small intestine
3 muscle tissues=
Metaplasia, dysplasia, neoplasia
Metaplasia is a change in
type/form_ of tissue/cells.
Dysplasia is depicted by a __
reduction__ in differentiation of the cell
Neoplasia is defined as _
uncontrolled/excessive_ cell growth.
Normal epithelia
Neoplasia
Dysplasia (resembles small intestine tissue)
Normal epithelia
Dysplasia
Neoplasia
Metaplasia
Microscopically, what features would you expect to see in inflamed tissue?
Infiltrating immune/inflammatory cells
* Oedema
* Phagocytosed cells
* Fibrin
* Exudate
* Hyperaemia
inflamed tissue, as we can see Phagocytosed cells
* Hyperaemia
In the blood vessel pictured below (V), what cellular inflammatory response is evident? (Hint- look at the
periphery of the lumen).What chemical mediator might be causing this?
Margination/Pavementing (leukocytes only visible along the edge of the vessel wall). Histamine, chemokines, cytokines
Chronic inflammation (as it has granulomas)
Chronic inflammation (has mononuclear infiltrate)
acute inflammation(has Mostly neutrophil accumulation)
acute inflammation(has Mostly neutrophil accumulation)
