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Histology > Muscles > Flashcards

Muscles Flashcards

1
Q

Long narrow cells

A

Muscle cells

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2
Q

Mitochondria in muscles

A

Sarcosome

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3
Q

Multinucleated peripheral nucleui

A

Syncytium
Skeletal muscles

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4
Q

Cytoplasm of muscle

A

Sarcoplasm

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5
Q

Cell membrane of muscle

A

Sarcolemma

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6
Q

ER of muscle

A

Sarcoplasmic reticulum

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7
Q

Voluntary muscle

A

Skeletal

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8
Q

Striated

A

Cardiac and skeletal

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9
Q

Branched

A

Cardiac

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10
Q

Large diameter

A

Skeletal

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11
Q

Peripheral nucleus

A

Skeletal

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12
Q

Multinucleated cell

A

Skeletal

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13
Q

Actin and mysoin

A

Skeletal and cardiac

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14
Q

Largest vs smallest fiber

A

Skeletal
Smooth

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15
Q

Joined by intercalated discs desmosomes

A

Cardiac

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16
Q

Regenerates by mitosis

A

Smooth

17
Q

In blood vessels
Inner
Outer

A

Smooth
Circular
Oval

18
Q

Contractile unit of skeletal muscle for structure and function

A

Sarcomere
Between 2 z lines

19
Q

Myosin only

A

H zone

20
Q

I band

A

Actin only

21
Q

Both actin and myosin

A

A band

22
Q

Triad .

A

T tubules(transverse system )
Sarcoplasmic reticulum(longitudinal system )
Allows a wave of depolarisation to spread

23
Q

Contraction

A

Sarcolemma»terminal cisternae»pump ca2+ to fibers»ca2+ allows actin and myosin to shorten the sarcomere»contraction

24
Q

Dead cardiac muscle is

A

Infarct

Histology (19 decks)

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