CHE - Muscle Tissue

Sole C
Quiz by Sole C, updated more than 1 year ago
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CHE - Muscle Tissue
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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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