Țesutul epitelial
DESCRIPTION
ȚESUTUL EPITELIAL. Epitelii de acoperire. Epitelii de acoperire. Preparate: Epiteliu simplu pavimentos (rinichi, venulă) Epiteliu simplu cubic (rinichi, tiroidă) Epiteliu simplu cilindric (intestin subțire, vezică biliară) Epiteliu stratificat pavimentos (esofag, vagin, piele) - PowerPoint PPT PresentationTRANSCRIPT
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ȚESUTUL EPITELIAL
Epitelii de acoperire
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Epitelii de acoperire
Preparate:1. Epiteliu simplu pavimentos (rinichi, venulă)
2. Epiteliu simplu cubic (rinichi, tiroidă)
3. Epiteliu simplu cilindric (intestin subțire, vezică biliară)
4. Epiteliu stratificat pavimentos (esofag, vagin, piele)
5. Epiteliu stratificat cubic (glandă sudoripară)
6. Epiteliu stratificat cilindric (glandă salivară)
7. Epiteliu stratificat polimorf – uroteliu (vezică urinară)
8. Epiteliu pseudostratificat cilindric (trahee, epididim)
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Rinichi, col. HE, 640x
N – Nucleii cel. epiteliale (epiteliu simplu pavimentos) AV – arteriole; B – Spațiu Bowman;
Ross HM, Histology: A Text and Atlas, 4th ed.
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Venulă, col. HEAM, 900x
N – Nucleii cel. endoteliale (epiteliu simplu pavimentos)
N
N
Popescu LM, Atlas color de histologie
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Rinichi, col. HE, ob. 25x
ESCu
Popescu LM, Atlas color de histologie
ESCu – Epiteliu simplu cubic
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Ross HM, Histology: A Text and Atlas, 4th ed.
ESCu
ESCu – Epiteliu simplu cubic; săgeți – capilare
Tiroidă, col. HE, 500x
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Intestin subțire, col. HE, ob. 25x
ESCil
ESCil – Epiteliu simplu cilindric (columnar)Popescu LM, Atlas color de histologie
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Vezică biliară, col. HE, 325x
Ross HM, Histology: A Text and Atlas, 4th ed.Ep – Epiteliu simplu cilindric; BV – vase de sânge;
CT - țesut conjunctiv
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Esofag, col. HE, ob. 40x
Blue Histology, http://www.lab.anhb.uwa.edu.au/mb140/histhome.htm
Strat superficial
Strat intermediar
Strat bazal
Epiteliu pavimentos stratificat nekeratinizat
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Vagin, col. HE, 110x
Ep - Epiteliu pavimentos stratificat nekeratinizat; săgeți – papile conjunctive
Ross HM, Histology: A Text and Atlas, 4th ed.
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Stratul cornos
Stratul granulos
Stratul lucidum
Stratul spinos
Stratul bazal
dermul
Piele groasa
Piele, col. HEAM, ob. 10x
Epiteliu pavimentos stratificat keratinizat
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Epiteliul stratificat pavimentosPiele, col. HE, ob. 10x
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Piele, glandă sudoripară, col. HE, 1000x
Ross HM, Histology: A Text and Atlas, 4th ed.
D – ducte excretorii(ep. cubic stratificat);
SG – adenomer;
Săgeți – canaliculi intercelulari;
Vîrfuri de săgeți – celule mioepiteliale;
* - lumen.
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Limbă, col. hematoxilină ferică-carmin, 1416x
Epiteliu stratificat cilindric, duct excretor al unei glande salivare http://www.anatomyatlases.org/
MicroscopicAnatomy/
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Epiteliu stratificat polimorf(ep. de tranziție, uroteliu)
Vezică urinară, col. HE, 400x
CT - țesut conjunctiv; * – cel. umbeliforme
Ross HM, Histology: A Text and Atlas, 4th ed.
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Vezică urinară, col. HE, ob. 40x
Popescu LM, Atlas color de histologie
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Trahee, col. HE, 450x
C – cili; CC – celule cilindrice înalteBC – celule bazale; CT - țesut conjunctiv
Ross HM, Histology: A Text and Atlas, 4th ed.
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Trahee, col. HE, ob. 40x
EPCC
EPCC – Epiteliu pseudostratificat cilindric ciliat
Popescu LM, Atlas color de histologie
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Epididim, col. HE, ob. 40x
*
*
Epiteliu pseudostratificat cilindric cu stereocili
Popescu LM, Atlas color de histologie