Histology of respiratory system larynx trache and lung

1. The respiratorysystem
Sectionsofthelarynx, trachea and
lung

2. Mediansaggitalsectionofthelarynx
1.
2.
3.
5.
4.
6.
7.
vestibule
ventricule
subepiglottic
cavity
4.
1.epiglotticcartilage
2.thyroidcartilage
3.archofcricoidcartilage
4.cartilagesoftrachea
5.laminaofcricoidcartilage
6. vestibularfold
7. vocalfold

3. Hyalinecartilage:
Thyroidcartilage
Cricoidcartilage
Arytenoidcartilageexceptthevocalprocess
Elasticcartilage:
Vocalprocessofarytenoidcartilage
Corniculatecartilage
Cuneiformcartilage
Epiglotticcartilage

4. Epiglottis
stratifiedsquamousnonkeratinizedepithelium
withhighpapillaeonthepharyngealsurface
stratifiednonkeratinizedsquamousepithelium
withoutpapillaeonthelaryngealsurface
Larynx
ciliatedpseudostratifiedcolumnarepithelium
Vocalfold
stratifiedsquamousnonkeratinizedepithelium

5. 51. larynx-epiglottis(HE), 4X
laryngealsurface
pharyngealsurface
elasticcartilage
salivary
glands

6. Vestibularfold
Vocalfold
Ventricule
51. larynx(HE), 4X

7. Identificationofthesurfacesofepiglottis
Determinationofvestibularandvocalfolds
Recognitionofcoveringepithelia

8. 1.Tunica mucosa:
a, epitheliummucosae: ciliatedpseudostratifiedcolumnar
epithelium, gobletcells, endocrinecells
b, laminapropria:looseconnectivetissue,
lymphocytes, plasmacells
2. Tunicasubmucosa: looseconnectivetissue
trachealglandssero-mucousglands
3. Tunicafibro-musculo-cartilaginea: hyalinecartilagerings
annular ligg.
pariesmembranaceus
(trachealismuscle,
connectivetisue)
4. T. adventitia: connectivefibers, bloodvessels, nerves

9. 52. trachea (HE), 4X
ciliatedpseudostratified
columnarepithelium
tracheal
glands
hyaline
cartilage
paries
membranaceus

10. 52. trachea (HE), 40X
basallamina
ciliatedpseudostratified
columnarepithelium
capillary
laminapropria

11. Find the characteristic items of the
trachealwall.

12. 1. T. mucosa: -ciliatedpseudostratifiedcolumnarepithelium
-epitheliumgraduallydecreasesinitsheight,
laminapropriabecomesthinnertowardsthe
terminalbronchioli
2. T. muscularis: smoothmusclelayerinthelargerbronchi
is replacedbyspirallyarrengedsmooth
muscle cellsinthesmallerbronchi
3. Cartilageplates: decreasegraduallyinnumberandsize
4. Adventitia: collagenfibers.
Inthewallofthebronchismallsalivaryglandscanbe found.

13. 53. lung-bronchus(HE), 10X
hyaline
cartilage
smooth
muscle
alveolus
bronchial
lumen
epithelium

14. 53. lung-bronchiole
(HE), 10X
lumen of
bronchiole
epithelium
alveoli

15. 53. lung(HE), 40X
alveolus
septum
pneumocyteII
pneumocyteI

16. Differentiate between thewallsof bronchi
andbronchioli.

17. The layersoftheblood-airbarrier
typeI cell
surfactant
capillaryendothel
fusedbasallamina
capillary
lumen

18. 54. lung(orcein), 40X
elastic
fibers
pneumocyteII
pneumocyteI

19. Study the thin walls of alveoli.
Try to find pneumocytaII cells.