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1. Foundation > W2/L12 > Flashcards

W2/L12 Flashcards

1
Q

Skeletal muscle is aka? (3)

A

Voluntary
Somatic
Striated

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2
Q

What are the histological features of skeletal muscle?

A

Peripheral nuclei
Striations
Long length

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3
Q

What are the histological features of cardiac muscle?

A

Central nuclei
Striations
Branching

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4
Q

What are the histological features of smooth muscle?

A

Central, elongated nuclei
No striations
No branching

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5
Q

What are the subunits of a myofibril?

A

Sarcomeres

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6
Q

What are the thick filaments in a sarcomere?

A

Myosin

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7
Q

What are the thin filaments in a sarcomere?

A

Actin

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8
Q

What structure anchors the thin filaments & forms a boundary with the next sarcomere?

A

Z-discs

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9
Q

What shortens (& what doesn’t) in muscle contraction?

A

Sarcomere shortens due to increased overlap of the thick & thin filaments

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10
Q

Where do myofibroblasts come from?

A

Fibroblasts activated after injury

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11
Q

What is the function of myofibroblasts?

A

They pull wounds closed

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1. Foundation (31 decks)

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