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BIO-305: Anatomy + Physiology I Lecture Exam #3 > Myofibril Anatomy > Flashcards

Myofibril Anatomy Flashcards

1
Q

Myofibril

A

Highly structured proteins

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2
Q

Sarcolemma

A

Cell membrane

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3
Q

T-tubule

A

Help depolarization spread evenly

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4
Q

Mitochondrion

A

ATP

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5
Q

Sarcoplasmic Reticulum (SR)

A

Ca2+ storage

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6
Q

Sarcomere

A

Organized proteins (myofiliaments)

Z line, I band, M band, H band (within M band), I band, Z line

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7
Q

Myosin

A

Thick filament

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8
Q

Myosin Heads

A

Binding sites to actin

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9
Q

Crossbridge

A

When myosin is bound

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10
Q

Three proteins that make up thick filament

A

Actin, tropomyosin, troponin

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11
Q

Titin

A

Connects to myosin protein in thick filament

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BIO-305: Anatomy + Physiology I Lecture Exam #3 (15 decks)

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