Questão 1
Questão
By muscle contraction the length of the I-discus is diminished whereas the A-discus is unchanged.
Questão 2
Questão
"Sacromere" is a concept designated to the part of the myofibril between two Z-lines.
Questão 3
Questão
Leiomyofibril is the cell specific for the striated muscle tissue.
Questão 4
Questão
The intercalated discs are localized in the cardiac muscle tissue.
Questão 5
Questão
Z-Line (telophragma) is in the middle of the I-discus of the myofibril.
Questão 6
Questão
The loose connective tissue plays a role of inter-cellular substance for the muscle tissue.
Questão 7
Questão
The myofibril is:
Questão 8
Questão
Under electron microscope in H - band of myofibril are observed:
Questão 9
Questão
The nuclei of the striated myofibre are localized:
Responda
-
In the central part of the cytoplasm
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Sublemmal (under the plasma membrane)
-
Without strictly localization
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Along the bundles of myofibrils
Questão 10
Questão
The intercalated discs between the cardiomyocytes are localized:
Responda
-
Step-like
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Under the plasma membrane
-
Without strictly localization
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Along the bundles of cardiomyofibrils
Questão 11
Questão
Under electron microscope in I-disc of the myofibril are observed:
Questão 12
Questão
The cardiomyocytes bind together through:
Questão 13
Questão
Under electron microscope in A-disc of the myofibril are observed:
Questão 14
Questão
The cardiomyofibrils in the cells of impulse-conductive muscle tissue:
Responda
-
Are scanty and centrally placed in the cell
-
Fill the whole cell cytoplasm
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Are scanty and peripherally placed in the cell
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Are lacking
Questão 15
Questão
The sacrosomes in the muscle tissue cells are:
Responda
-
Phagesomes
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Mitochondria
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Lysosomes
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Cell inclusions
Questão 16
Questão
Myoepithelial cells are localized
Responda
-
In the wall of some acini
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In the blood vessels wall
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In the skeletal muscles
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In the wall of the semi-niferous tubules
Questão 17
Questão
The most specific features of the muscles tissue are:
Responda
-
Abundant intercellular substance
-
Numerous blood vessels and nerve endings
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Lack of proper intercellular substance
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Presence of three types of microscopic organisation
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Presence of tonofibrils
Questão 18
Questão
Which of the following is specific for the striated skeletal muscle tissue:
Responda
-
Presence of striated myofibrils
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Presence of smooth myofibrils
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Symplast type of organisation
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Syncytial type of organisation
-
Origin from the mesoblast
Questão 19
Questão
Which of the following is specific for the smooth muscle tissue:
Responda
-
Presence of striated myofibrils
-
Presence of smooth myofibrils
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Cellular type of organisation
-
Origin from the mesenchyme
-
Origin of the mesoblast
Questão 20
Questão
The intercalated discs of the cardiac muscle tissue consists of: