Histology- Muscle Tissue Long Questions 1st year PMU

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

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]

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]

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]

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.

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.