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Summary

Sumario Esquema/resumen de glándulas suprarrenales y gónadas

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Mediante este esquema/resumen se pretende aumentar los conocimientos básicos (embriología, anatomía, histología y fisiología) de las glándulas suprarrenales y de las gónadas.

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MEDICINA INTERNA II – ENDOCRINOLOGÍA CAVA JESSICA




Células epitelio celómico

Porción mesodérmica Corteza fetal (5 semanas)

CORTEZA Corteza permanente




Células provenientes de los ganglios
Porción ectodérmica simpáticos del plexo celíaco

MÉDULA Posición central (cordones y masas)




Epitelio celómico y mesénquima
Cresta o pliegue
genital Primer esbozo

4ª semana


Células germinativas Migran mediante movimientos ameboides
primordiales o monocitos
6ª semana asientan en crestas genitales




Periodo indiferente Estructura semejante en ambos sexos
(gónadas no diferenciadas)



1. Tejido medular: formación de cordones testiculares o sexuales.

2. Tejido cortical: forma la parte de la estructura del ovario, a partir del
Periodo diferenciado
epitelio celómico.
2
3. Mesénquima: forma el estroma de las gónadas.

4. Gonocitos: forma ovogonias o espermatogonias.

, MEDICINA INTERNA II – ENDOCRINOLOGÍA CAVA JESSICA



Cápsula: tejido
conjuntivo


Glomerular: Cordones celulares dispuestos en glomérulos (Mineralocorticoides)

Fascicular: Espingocitos (Glucocorticoides)
Corteza
Reticular: Cordones celulares anastomosados entre sí (Andrógenos)

Alta vascularización



Cordones de células cromafines, de apetencia basófila y células ganglionares
dispersas.
Médula
Catecolaminas

Muy vascularizada




Túnica albugínea (Túnica vaginal)

Masculino Estroma Lobulillo
Células de Sertoli
Testículo
TÚBULOS SEMINÍFEROS Células germinales (fases desarrollo
Parénquima espermatozoide)
Túbulos rectos

Rete testis

Intersticio Células de Leyding TESTOSTERONA



Femenino Estroma
Ovario Envoltura externa

Túnica albugínea


Folículos primordiales

Parénquima Folículos primarios
Zona cortical
Folículos secundarios ESTRÓGENO Y
PROGESTERONA
Folículos maduros o de Graaf
3
Folículos atrésicos / cuerpo lúteo



Zona medular Vasos sanguíneos, linfáticos y nervios está
la red ovárica,

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Uploaded on
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