sistema endocrino Flashcards

1
Q

función de sistema endocrino

A

Control de funciones mediante secreción de mediadores químicos

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2
Q

hipotalamo

A

en diencefalo
debajo de talamo
controla sistema endocrino, nervioso autonomo vegetativo, sistema limbicom temperatura

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3
Q

que se segrega el hipotalamo

A

vasopresina
oxitocina

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4
Q

hipofisis

A

en silla tura
dividida en adenohipofisis y neruhipofisis

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5
Q

neurohipofisis

A

posterior
almacena hormonas
porciones: infundibulo y lobulo neural

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5
Q

adenohipofisis

A

anterior
regula otras glándulas
porciones: tuberosa, distal e intermedia

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6
Q

glandula pineal

A

sibre tuberculos cuadrigeminos
produce serotonina y melatonina
controla ritmo circadiano y secreción de aldosterona

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7
Q

tiroides

A

delante de traquea
2 lobulos laterales e istmo central
T3, T4 y tirocalcitonina
control basal y excitabilidad de SNC

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8
Q

paratiroides

A

glandulas anexas a tiroides
producen parathormona para regular calcio y fosforo

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8
Q

timo

A

tejido linfoide
anterior a mediastino superior
crecimeinto oseo, desarrollo gonadas, maduración sistema liinfatico

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9
Q

glándulas suprarrenales

A

superomedial de riñones
izq: semilunar
der: piramidal
estructura: corteza y medul a

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10
Q

corteza suprarrenal

A

Secreta corticoesteroides, andrógenos
Retención de sodio y agua en respuesta a estres

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11
Q

médula

A

Asociada a sistema nervioso simpático
Secreta catecolaminas: Adrenalina y noradrenalina
Aumenta frecuencia cardíaca y presión arterial, Dilata bronquios

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12
Q

páncreas

A

retroperineal L1-L2

secreción exocrina: jugo pancreatico en acinares

secreción endocrina: glucagon e insulina en islotes

conductos: principal y accesorio

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