Histology- Muscle Tissue Long Questions 1st year PMU

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Histology- Muscle Tissue Long Questions
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Pregunta 1

Pregunta
The triad of the striated myofibril consists of: a/ [blank_start]T system[blank_end] b/ [blank_start]2L systems[blank_end]
Respuesta
  • T system
  • 2L systems

Pregunta 2

Pregunta
What is the embryonic origin of: a/ smooth muscle tissue- [blank_start]mesenchyme[blank_end] b/ skeletal striated muscle tissue- [blank_start]mesoblast[blank_end] c/ cardiac striated muscle tissue- [blank_start]mesoblast[blank_end] d/ myoepithelial cells- [blank_start]skin ectoblast[blank_end]
Respuesta
  • mesenchyme
  • mesoblast
  • mesoblast
  • skin ectoblast

Pregunta 3

Pregunta
The following proteins are present in the striated myofibrils: a/ [blank_start]actin[blank_end] b/ [blank_start]myosin[blank_end] c/ [blank_start]tropomyosin[blank_end] d/ [blank_start]troponin[blank_end]
Respuesta
  • actin
  • myosin
  • tropomyosin
  • troponin

Pregunta 4

Pregunta
The following types of the muscle tissue are innervated by the vegetative nervous system: a/ [blank_start]smooth[blank_end] b/ [blank_start]cardiac[blank_end]
Respuesta
  • smooth
  • cardiac

Pregunta 5

Pregunta
For smooth muscle tissue the [blank_start]cellular[blank_end] type of microscopic organization is specific and the nuclei are localized in the [blank_start]central[blank_end] part of the cells.
Respuesta
  • cellular
  • central

Pregunta 6

Pregunta
The main contractile unit of the striated myofibrils is [blank_start]sacromere[blank_end] which is localized between [blank_start]two Z[blank_end] lines.
Respuesta
  • sacromere
  • two Z
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