4956078
Description
Quiz by Ramtin Yeganeh, updated more than 1 year ago
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Created by Sole C
almost 9 years ago
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Copied by Ramtin Yeganeh
almost 9 years ago
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Question 1
Question
By muscle contraction the length of the I-discus is diminished whereas the A-discus is unchanged.
Answer
- True
- False
Question 2
Question
"Sacromere" is a concept designated to the part of the myofibril between two Z-lines.
Answer
- True
- False
Question 3
Question
Leiomyofibril is the cell specific for the striated muscle tissue.
Answer
- True
- False
Question 4
Question
The intercalated discs are localized in the cardiac muscle tissue.
Answer
- True
- False
Question 5
Question
Z-Line (telophragma) is in the middle of the I-discus of the myofibril.
Answer
- True
- False
Question 6
Question
The loose connective tissue plays a role of inter-cellular substance for the muscle tissue.
Answer
- True
- False
Question 7
Question
The myofibril is:
Answer
-
Specialized cell organelle
-
Cell
-
Syncytium
-
Symplast
Question 8
Question
Under electron microscope in H - band of myofibril are observed:
Answer
-
Thin myofilaments
-
Thick myofilaments
-
Thin and thick myofilaments
-
No myofilaments
Question 9
Question
The nuclei of the striated myofibre are localized:
Answer
-
In the central part of the cytoplasm
-
Sublemmal (under the plasma membrane)
-
Without strictly localization
-
Along the bundles of myofibrils
Question 10
Question
The intercalated discs between the cardiomyocytes are localized:
Answer
-
Step-like
-
Under the plasma membrane
-
Without strictly localization
-
Along the bundles of cardiomyofibrils
Question 11
Question
Under electron microscope in I-disc of the myofibril are observed:
Answer
-
Thin myofilaments
-
Thick myofilaments
-
Thin and thick myofilaments
-
No myofilaments
Question 12
Question
The cardiomyocytes bind together through:
Answer
-
Interdigitation ("zipper" interlocking)
-
Intercalated discs
-
Hemi-desmosomes
-
Basal lamina
Question 13
Question
Under electron microscope in A-disc of the myofibril are observed:
Answer
-
Thin myofilaments
-
Thick myofilaments
-
Thin and thick myofilaments
-
No myofilaments
Question 14
Question
The cardiomyofibrils in the cells of impulse-conductive muscle tissue:
Answer
-
Are scanty and centrally placed in the cell
-
Fill the whole cell cytoplasm
-
Are scanty and peripherally placed in the cell
-
Are lacking
Question 15
Question
The sacrosomes in the muscle tissue cells are:
Answer
-
Phagesomes
-
Mitochondria
-
Lysosomes
-
Cell inclusions
Question 16
Question
Myoepithelial cells are localized
Answer
-
In the wall of some acini
-
In the blood vessels wall
-
In the skeletal muscles
-
In the wall of the semi-niferous tubules
Question 17
Question
The most specific features of the muscles tissue are:
Answer
-
Abundant intercellular substance
-
Numerous blood vessels and nerve endings
-
Lack of proper intercellular substance
-
Presence of three types of microscopic organisation
-
Presence of tonofibrils
Question 18
Question
Which of the following is specific for the striated skeletal muscle tissue:
Answer
-
Presence of striated myofibrils
-
Presence of smooth myofibrils
-
Symplast type of organisation
-
Syncytial type of organisation
-
Origin from the mesoblast
Question 19
Question
Which of the following is specific for the smooth muscle tissue:
Answer
-
Presence of striated myofibrils
-
Presence of smooth myofibrils
-
Cellular type of organisation
-
Origin from the mesenchyme
-
Origin of the mesoblast
Question 20
Question
The intercalated discs of the cardiac muscle tissue consists of:
Answer
-
"Zipper" interlocking (interdigitatio)
-
Gap junctions (nexus)
-
Tight junctions (zonula occludens)
-
Hemi-desmosomes
-
Desmosomes
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