Embryonic stem cells growing in a lab dish are bathed in a "cocktail" of chemicals that cause them to specialize into branching networks of single-nucleated cells that pulsate in unison. These cells are most likely part of what types of tissue?Multiple ChoiceSkeletal muscleCardiac muscleEpithelial tissueSmooth muscle
Question
Embryonic stem cells growing in a lab dish are bathed in a "cocktail" of chemicals that cause them to specialize into branching networks of single-nucleated cells that pulsate in unison. These cells are most likely part of what types of tissue?Multiple ChoiceSkeletal muscleCardiac muscleEpithelial tissueSmooth muscle
Solution
Para responder a esta pregunta, es importante analizar las características de los diferentes tipos de tejidos mencionados:
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Skeletal muscle (Músculo esquelético): Este tipo de tejido muscular está compuesto por células multinucleadas y es responsable del movimiento voluntario del cuerpo. Las células del músculo esquelético no suelen pulsar en unísono.
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Cardiac muscle (Músculo cardíaco): Este tejido se encuentra en el corazón y está compuesto por células que tienen un solo núcleo (o a veces dos) y que se conectan entre sí formando una red ramificada. Estas células tienen la capacidad de pulsar en unísono, lo cual es esencial para el funcionamiento del corazón.
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Epithelial tissue (Tejido epitelial): Este tipo de tejido cubre las superficies del cuerpo y los órganos internos, y no está asociado con la capacidad de pulsar.
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Smooth muscle (Músculo liso): Este tejido se encuentra en las paredes de los órganos internos y vasos sanguíneos. Las células del músculo liso son mononucleadas y pueden contraerse, pero no forman redes ramificadas ni suelen pulsar en unísono de la misma manera que el músculo cardíaco.
Dado que las células descritas en la pregunta son mononucleadas, forman redes ramificadas y pulsar en unísono, es más probable que sean parte del músculo cardíaco.
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