Muscle Structure & Physiology
Flashcard
•
Science
•
12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the smallest unit of contraction in muscle tissue?
Back
Sarcomere
2.
FLASHCARD QUESTION
Front
What neurotransmitter is released from the neuron and binds to the muscle fiber during contraction?
Back
Acetylcholine (ACh)
3.
FLASHCARD QUESTION
Front
Which ion enters the axon terminal of the neuron during the first phase of muscle contraction?
Back
Calcium
4.
FLASHCARD QUESTION
Front
Which of the following is NOT a special characteristic of muscle cells?
Back
Agility
5.
FLASHCARD QUESTION
Front
What is the name of the thin protein filaments within the muscle contractile unit?
Back
Actin
6.
FLASHCARD QUESTION
Front
What is the role of myosin in muscle contraction?
Back
Myosin is a thick filament that interacts with actin to produce muscle contraction.
7.
FLASHCARD QUESTION
Front
Define contractility in the context of muscle physiology.
Back
Contractility is the ability of muscle cells to shorten and generate force.
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