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BRS - M + R > Muscle microstructure, etc. > Flashcards

Muscle microstructure, etc. Flashcards

1
Q

What are the 3 main muscle types?

A

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2
Q

What is smooth muscle? Where is it found?

A

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3
Q

What is cardiac muscle? Where is it found?

A

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4
Q

What is skeletal muscle? Where is it found?

A

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5
Q

What are the 4 main arrangements of muscles?

A

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6
Q

What are the 3 types of pennate muscles?

A

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7
Q

What is the structure of skeletal muscle, going from microscopic to macroscopic?

A

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8
Q

What is the epimysium?

A

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9
Q

What is the perimysium?

A

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10
Q

What is the endomysium?

A

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11
Q

What is sarcolemma?

A

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12
Q

What are t-tubules?

A

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13
Q

What’s sarcoplasm?

A

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14
Q

What is the sarcoplasmic reticulum?

A

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15
Q

What is a fascicle?

A

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16
Q

What is a myofibre?

A

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17
Q

What is a myofibril?

A

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18
Q

What is a myofilament?

A

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19
Q

What are the “thin” filaments in myofibrils?

A

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20
Q

What are the “thick” filaments in myofibrils?

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21
Q

Why do muscles have a striated appearance?

A

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22
Q

What are sarcomeres?

A

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23
Q

What is a Z disc?

A

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24
Q

What is an A band?

A

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25
Q

What is an I band?

A

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26
Q

What is an M line?

A

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27
Q

What is a H zone?

A

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28
Q

What is the structure of myosin?

A

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29
Q

What is the structure of actin?

A

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30
Q

What were the indications of the sliding filament theory for muscle contraction?

A

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31
Q

What initiates muscle contraction?

A

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32
Q

How does calcium play a role in initiating muscle contraction?

A

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33
Q

How does acetylcholine play a role in initiating muscle contraction?

A

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34
Q

How do muscle action potentials cause calcium release for muscle contraction?

A

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35
Q

How does calcium affect troponin + tropomyosin?

A

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36
Q

How does the brain control muscle contraction?

A

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37
Q

What is a motor unit?

A

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38
Q

What 3 factors are used to classify motor units?

A

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39
Q

What are the 2 mechanisms used by the brain to regulate force that a single muscle can produce?

A

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40
Q

What is meant by muscle “recruitment”?

A

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41
Q

What is meant by motor unit “rate coding”?

A

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42
Q

What else does a motor neurone do besides innervating a motor unit?

A

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43
Q

What are the 3 main types of muscle contraction?

A

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44
Q

What is an isometric muscle contraction?

A

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45
Q

What is an concentric muscle contraction?

A

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46
Q

What is an eccentric muscle contraction?

A

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47
Q

What is a fast twitch muscle?

A

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48
Q

What is a slow twitch muscle?

A

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49
Q

Change in Motor units…

A

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BRS - M + R (3 decks)

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