Muscle Structure
Flashcard
•
Science
•
11th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the basic contractile unit of muscle contraction?
Back
Sarcomere
2.
FLASHCARD QUESTION
Front
Which protein filament is primarily responsible for muscle contraction?
Back
Myosin
3.
FLASHCARD QUESTION
Front
What is the correct order of muscle structures from largest to smallest?
Back
Muscle -> Muscle fascicles -> Muscle fibers -> Myofibrils -> Sarcomeres
4.
FLASHCARD QUESTION
Front
What connective tissue sheath envelops each primary bundle of muscle fibers?
Back
Perimysium
5.
FLASHCARD QUESTION
Front
What is the function of actin in muscle contraction?
Back
Actin serves as a track for myosin to pull on during muscle contraction.
6.
FLASHCARD QUESTION
Front
What is the role of myofibrils in muscle fibers?
Back
Myofibrils are the contractile elements of muscle fibers, containing sarcomeres.
7.
FLASHCARD QUESTION
Front
What is the outermost connective tissue layer surrounding a muscle?
Back
Epimysium
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