
Muscle Unit Review
Flashcard
•
Science
•
12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a muscle cramp?
Back
A muscle cramp is an involuntary and forcibly contracted muscle that does not relax. It often occurs due to extracellular fluid imbalances.
2.
FLASHCARD QUESTION
Front
What is oxygen debt?
Back
Oxygen debt refers to the amount of oxygen required to restore the body to its normal state after exercise, leading to the production of lactic acid when oxygen is insufficient.
3.
FLASHCARD QUESTION
Front
What does 'all or none response' mean in muscle contraction?
Back
The 'all or none response' means that when a muscle fiber is stimulated, it contracts fully or not at all, regardless of the strength of the stimulus.
4.
FLASHCARD QUESTION
Front
What is crossbridge formation in muscle contraction?
Back
Crossbridge formation occurs when myosin heads bind to actin filaments, allowing muscle contraction to take place.
5.
FLASHCARD QUESTION
Front
What is an agonist muscle?
Back
An agonist muscle is the primary muscle responsible for a specific movement, often referred to as the prime mover.
6.
FLASHCARD QUESTION
Front
What is ATP debt?
Back
ATP debt occurs when the demand for ATP exceeds the supply, often during intense exercise, leading to muscle fatigue.
7.
FLASHCARD QUESTION
Front
What is lactic acid?
Back
Lactic acid is a byproduct of anaerobic metabolism, produced when glucose is broken down for energy without sufficient oxygen.
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