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Ejercitario 1 de Histologia

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Bundle of solved histology & embryology exam questions This pack includes 3 complete documents with: Multiple choice questions True/false exercises Exam-style practice Organized correct answers Perfect for medical students looking for efficient exam preparation and quick revision.

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, Embriología
Verdadero y Falso
1.​ El revestimiento de la laringe es de origen ectodérmico (endodérmico) y los músculos y
cartílago provienen de la mesénquima de los arcos faríngeos 5to y 6to:
La laringe es de origen endodérmico y el cartílago proviene de la mesénquima de los
arcos faríngeos 4 a 6 (FF)
2.​ Las células alveolares de tipo II aparecen hacia el final del sexto mes y son encargados
de la producción del surfactante: (VV)
3.​ Las arterias vitelinas del embrión se fusionan y en el adulto forman el tronco celíaco:
(VV)
4.​ Las venas vitelinas llevan la sangre del saco vitelino al seno venoso y originan la vena
braquiocefálica: (VF)
5.​ La vena umbilical se oblitera y forma el ligamento redondo del hígado: (VV)
6.​ El tubo digestivo tiene revestimiento derivado del endodermo y el mesodermo
esplácnico originan los componentes muscular y conectivo: (VV)
7.​ El epitelio del aparato respiratorio deriva del intestino anterior y los músculos derivan del
endodermo (FF)
8.​ Las células alveolares de tipo II aparecen hacia el octavo mes (sexto mes) y son
encargados de la producción del surfactante: (FV)
9.​ El tubo digestivo tiene revestimiento derivado del ectodermo (ENDODERMO) y el
mesodermo esplácnico originan los componentes muscular y conectivo: (FV)

Seleccion Multiple I

1.​ Una vellosidad primaria presenta los siguientes componentes:
a.​ Sincitio, citotrofoblasto, tejido conectivo (2da)
b.​ Sincitio, tejido conectivo, endotelio vascular (3ra)
c.​ Sincitio, endotelio vascular
d.​ Centro de citotrofoblasto cubierto por sincitio
✓ Al comienzo de la 3° semana las Vellosidades primarias: citotrofoblasto y sincitiotroblasto
✓ Al comienzo de la 3° semana las vellosidades secundarias: : citotrofoblasto y sincitiotroblasto
y centro mesodérmico
✓ Al comienzo de la 3° semana las vellosidades terciarias: : citotrofoblasto y sincitiotroblasto y
centro mesodérmico con capilares

1.​ el plano de segmentación del óvulo humano fecundado da origen a dos células hijas:
a. Mórula b. Blastómeras c. Gástrula d. Trofoblasto e. Blastocisto

2.​ la zona de endometrio materno que contacta con el polo abembrionario se denomina:
a. Corion leve b. Corion frondoso c. Cubierta citotrofoblastica d. Decidua capsular e. Lámina
corionica

3.​ El primer par de somitas aparece en la región:

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