a&p quiz 4 Flashcards by PD Alex

Q

actin

A

contains myosin binding sites

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Q

tropomyosin

A

covers/uncovers themyosin binding sites on action

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Q

z-line

A

define 1 sacromere from the next

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Q

troponin

A

binds (ca2+) calcium when present in the sacroplasm

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Q

titan

A

elasticity+extensibility

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Q

m-line

A

myomesin

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Q

nebulin

A

anchors/aligns the thin filament to the z-line

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Q

myomesin

A

causes the filaments to slide

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Q

contractility

A

dystrophin

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Q

THICK filament

A

composed of myosin

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Q

what is THIN filements composed of

A

actin
tropomyosin
troponin

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Q

sacomere fxn

A

level at which contractions occur.

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