Histology- Muscle Tissue 1st Year

By muscle contraction the length of the I-discus is diminished whereas the A-discus is unchanged.

"Sacromere" is a concept designated to the part of the myofibril between two Z-lines.

Leiomyofibril is the cell specific for the striated muscle tissue.

The intercalated discs are localized in the cardiac muscle tissue.

Z-Line (telophragma) is in the middle of the I-discus of the myofibril.

The loose connective tissue plays a role of inter-cellular substance for the muscle tissue.

Z-line (telophragma) is in the middle of the A- discus of the myofibril

The myofibril is:

Under electron microscope in H - band of myofibril are observed:

The nuclei of the striated myofibre are localized:

The intercalated discs between the cardiomyocytes are localized:

Under electron microscope in I-disc of the myofibril are observed:

The cardiomyocytes bind together through:

Under electron microscope in A-disc of the myofibril are observed:

The cardiomyofibrils in the cells of impulse-conductive muscle tissue:

The sacrosomes in the muscle tissue cells are:

Myoepithelial cells are localized

The most specific features of the muscles tissue are:

Which of the following is specific for the striated skeletal muscle tissue:

Which of the following is specific for the smooth muscle tissue:

Which of the following characteristics are specific for cardiac striated muscle tissue

The intercalated discs of the cardiac muscle tissue consists of:

Under the light microscope - (H- E staining), bundles of striated cylindrical structures with numerous peripherally placed nuclei are visible. What type of muscle tissue is this? Ans: [blank_start]striated skeletal muscle tissue[blank_end]

Under the light microscope - (H- E staining), long cells with centrally placed spherical nuclei, divided in two or more branches at its ends appear. Between the adjacent cells, dark lines pass in an irregular, step-like manner. What type of muscle tissue is this? Ans: [blank_start]striated cardiac muscle tissue[blank_end]

Associate each type of muscle tissue with its corresponding features: A/ smooth muscle tissue [blank_start]b[blank_end], [blank_start]d[blank_end] B/ cardiac striated muscle tissue [blank_start]c[blank_end], [blank_start]g[blank_end] C/ skeletal striated muscle tissue [blank_start]a[blank_end], [blank_start]e[blank_end] a/ presence of striated myofibrils b/ presence of smooth myofibrils c/ presence of cardiac myofibrils d/ cellular type of microscopic organization e/ symplast type of microscopic organization f/ syncytial type of microscopic organization

Under the light microscope - (H-E. staining). elongated (spindle-shaped) cells with centrally placed nuclei. arranged in layers are observed. What type of muscle tissue is this? Ans: [blank_start]Smooth Muscle Tissue[blank_end]