Tegumentario Flashcards

1
Q

Origen de la piel

A

La epidermis-ectodermo superficial
La dermis-mesodermo lateral somático

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2
Q

Al final del 4to mes se diferencian las cuatro capas de la dermis

A

Capa basal
Capa espinosa
Capa granulosa
Capa cornea

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3
Q

Función de la capa basal

A

Producción de células nuevas

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4
Q

Función de la capa espinosa

A

Constituida por celulares poliédricas grandes que contienen tonofibrillas delgadas

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5
Q

Capa granulosa

A

Contiene gránulos pequeños de queratohialina dentro de sus células

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6
Q

Capa cornea

A

Forma la superficie dura de la dermis

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7
Q

Fuentes de la dermis

A

Mesodermo de la placa lateral
Mesodermo paraxial
Células de la cresta neural

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8
Q

La capa más profunda de la dermis

A

Dermis reticular

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9
Q

Músculo liso pequeño insertado en la vaina dérmica de la raíz

A

Músculo erector del pelo

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10
Q

Cuando aparecen los primeros pelos en la superficie, en las cejas y en labio superior

A

3er mes

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11
Q

El primer vello que aparece se llama

A

Lanugo

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12
Q

Cuando alcanzan las uñas las puntas de los dedos?

A

9no mes

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13
Q

Tipos de glándulas sudoríparas

A

Ecrinas
Apocrinas

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