100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Sumario HISTOLOGÍA DE DIGESTIVO $8.49   Add to cart

Summary

Sumario HISTOLOGÍA DE DIGESTIVO

 2 views  0 purchase
  • Course
  • Institution

Resumen de Histología sobre Sistema digestivo

Preview 1 out of 4  pages

  • March 30, 2024
  • 4
  • 2020/2021
  • Summary
avatar-seller
Capas d TUBO DIG:
Histo Digestivo II
→ Mucosa: → “D” product d somatostanina: en todo tracto dig. inmunohqca
-Epitelio d revestimiento c lámina basal → “S” product d secretinas: + parte prox d ID
-Lámina própia d TC → “I” product d colecistocinina: + porción prox d ID
-Muscular d Mucosa → “K” product d Péptido inhibidor gástrico: porcion prox d ID
→ Submucosa: → “L” product d enteroglucagón
-TC denso no modelado → “N” product d neurotensina
-Plexo d meinsner → “MO” product d motilina
→ cel. Madre: en criptas d L. Entre estas cel madre en prolif
→ Muscular Externa: -unas migran partes + prof → cel d Paneth
-Circular interna (espiral apretada) -o van parte sup → enterocito y cel calciformes, viven 3-5 días xq
-Longitudial externa (espiral laxa) cuando llegan sufren apoptosis
-Plexo d Auerbach
LÁMINA PRÓPIA
→ Serosa o Adventicia TC reticular laxo c cel. S extiende como
nucleo d TC hasta parte sup d vellosidad
AUMENTAN SUPERFICIE ABSORTIVA entre criptas d L.
→ Pliegues circulares (yeyuno)→ Folículos Solitarios: formados x linfocitos q
→ Vellosidades aumentan en ileon y forman Placas d
→ Microvellosidades Pleyer son + d 50, en craa opuesta
DUODENO: glandulas en submucosa mesenterio.
YEYUNO: pliegues
ILEÓN: conglomerados d placas d peyer GALT (cel M, Placas d peyer, nodulos
linfáticos, linfocitos)
INTESTINO DELGADO
MUCOSA
Vellosidad.: núcleo d lamina propia (TC laxo) LÁMINA MUSCULAR DE LA MUCOSA
cubierto x epitelio. d Capa circular int salen haces finos y forman haz long en parte
central hacia Long Externa.
Kriptas d Liberkühn: gland tubulares simples
entre vellosidades.HE SUBMUCOSA
TC laxo, cel Ganglionares d Plexo d Meinssner (solo c gland en
Epitelio: mucosa cubierta x ep simple cilindrio c duodeno)
6 celulas: Gland d Brunner: empiezan en piloro, + desarrolladas duodeno.
Son adenomeros tubulares ramifcadas c cel mucosas c nucleo
→ Enterocitos: absortivas, cilindricas, núcleo ovoide y basal. aplanados basales, q secretan moco, cismógeno y bicarbonato.
Superficie d borde cepillo. Citoplasma eosinofilo. Criptas Cond excretores d epitelio simple cilindrico desembocan en
secretora. Fils d Actina, muchas mitocondrias y REL desarrollado. criptas d L.
Unión yuxtaluminales y zonulae occludens. Algunas pueden ser
solo absortivas (cúmulos d grasa) y otras solo secretoras MUSCULAR EXTERNA
formada x circular int y long ext separad x TC c plexo mientérico
→ Calciformes: entre absortivas y mucina,forma capa q s d Auerbach. Entre capas musc red d cel ramificadas cel
adhiere a membrana mucosa y la protege. PAS insterticiales d Cajal q dirigen freq y direccion d contracciones

→ C. d Paneth: en fondo d criptas d Liberkühn en duodeono.
Piramidales c nucleo basal y gránulos d secreción eosinofilos SEROSA
(defensinas y Lisozima). x meostelio y c subserosa subyacente y
red d fibras elasticas debajo d
→ cel “M”: macrofagos en Placa d Peyer membrana basal d cel mesoteliales.
→ Enteroendócrinas: c gránulos basales. Son
+ duodeno y yeyiuno; – en ileon y colon.

→ Enterocromafines: en todo trato dig y contienen serotonina.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Anna152. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $8.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

85443 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$8.49
  • (0)
  Add to cart