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Histología AS > Hueso > Flashcards

Hueso Flashcards

1
Q

División del hueso

A

Compacto

Esponjoso

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2
Q

Unidad funcional del hueso

A

Osteona

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3
Q

Division de la matriz extracelular del hueso

A

Organica

Inorganica

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4
Q

Proteoglucanos, condroitinsulfato, hialuronato, colageno y osteocalcina

A

Matriz organica

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5
Q

Fosfato de calcio

A

Matriz Inorganica

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6
Q

Porcentajes de matrices

A

65% inorganica

35% organica

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7
Q

Que hace el fosfato de calcio/hidroxiapatita?

A

Calcifica al hueso (lo pone duro)

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8
Q

Celulas del hueso

A

Osteoprogenitoras

Osteoblastos

Osteoclastos

Osteocitos

De recubrimiento

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9
Q

Celula que forma la matriz osea

A

Osteoblastos

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10
Q

Celula que hace la reabsorcion osea

A

Osteoclasto

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11
Q

Celula que mantiene el tejido oseo

A

Osteocito

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12
Q

Celula madre en tejido oseo

A

Celula progenitora

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13
Q

Cuando el hueso se forma a partir del mesenquima, como en los huesos planos del craneo, maxilar inferior y clavicula

A

Osificacion intramembranosa

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14
Q

Consiste en el desarrollo de un molde cartilaginoso que es sustituido progresivamente por hueso.

A

Osificacion endocondral (huesos largos)

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15
Q

Vía de desarrollo osificacion intramembranosa

A

Mesenquimales-osteoblasto-blastema oseo

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16
Q

Huesos planos necesitan molde?

A

No

17
Q

De monocitos medulares se convierte a…

(no proviene de una celula osteoprogenitora)

A

Osteclastos

18
Q

De osteoprogenitoras se convierte…

A

Osteoblastos

19
Q

Quien estimula al osteoblasto?

A

IGF-1
PAT3

20
Q

Proceso de mineralizacion - calcificacion

A

Se añade complejo fosfato-hidroxiapatita a osteoide

21
Q

Sucede durante el crecimiento

Formacion

Reabsorcion

A

Modelacion

22
Q

Reemplaza el tejido oseo formado por tejido nuevo

Actividad acoplada

A

Remodelacion

23
Q

Comunica osteona con osteona

A

Havers

24
Q

Comunica canales de havers

A

Volkman

25
Q

Produccion de osteocalcina estimulada por…

A

Vitamina D activada

26
Q

Previo a que se osifique (inmaduro) es osificacion intramembranosa

A

Blastema oseo

27
Q

Osificacion recorrido:

A

Osteoblasto-osteoide-osteocito

28
Q

Que pasa cuando se reabsorbe el hueso?

A

Calcio va a la sangre

29
Q

Organos que reabsorben calcio

A

Tiroides, riñon, hueso

Histología AS (15 decks)

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