Histopathological changes in common diseases — Flashcards

Flashcard 1: In lymph nodes, _____ follicles are dense and dormant

Answer: primary

Flashcard 2: Langerhans cells are derived from bone marrow _____

Answer: monocytes

Flashcard 3: Oligodendrocytes have a "_____" appearance histologically

Answer: fried egg

Flashcard 4: The intermediate filament Vimentin is found in _____ tissue

Answer: mesenchymal

Flashcard 5: Meissner corpuscles are large, _____ fibers (myelination)

Answer: myelinated

Flashcard 6: _____ are thin-walled blood vessels that consist of a single layer of endothelial cells surrounded by a basal lamina

Answer: Capillaries

Flashcard 7: Embryological origin of the dermis?

Answer: Mesoderm (and Neural Crest) :: mostly derived from Mesoderm (lateral plate and paraxial), but facial dermis is from Neural Crest.

Extra: The dermis has a dual origin: 1. Paraxial mesoderm (dermatome): Dermis of the back. 2. Lateral plate mesoderm: Dermis of the ventral body wall and limbs. 3. Neural crest cells: Dermis of the face and anterior neck.

Flashcard 8: What organelles are stained with Nissl substance?

Answer: RER

Flashcard 9: What type of cytoskeletal element is most associated with cell structure?

Answer: intermediate filaments

Flashcard 10: Which layer of the epidermis is the regenerative (stem cell) layer? _____

Answer: Stratum basalis

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