Muscle Anatomy

Flashcard
•
Biology
•
12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the connective tissue that surrounds individual muscle fibers?
Back
Endomysium
2.
FLASHCARD QUESTION
Front
What is the connective tissue that surrounds a fascicle of muscle fibers?
Back
Perimysium
3.
FLASHCARD QUESTION
Front
What is the outermost layer of connective tissue that surrounds an entire muscle?
Back
Epimysium
4.
FLASHCARD QUESTION
Front
What is the functional unit of a muscle fiber that contracts?
Back
Sarcomere
5.
FLASHCARD QUESTION
Front
What are the two main types of myofilaments in muscle fibers?
Back
Actin and Myosin
6.
FLASHCARD QUESTION
Front
What is the role of troponin in muscle contraction?
Back
Troponin binds calcium ions and helps regulate muscle contraction by moving tropomyosin away from actin binding sites.
7.
FLASHCARD QUESTION
Front
What is the role of tropomyosin in muscle contraction?
Back
Tropomyosin blocks the binding sites on actin filaments, preventing contraction until calcium ions bind to troponin.
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