Ch 8 - Muscular System Retake Review

Flashcard
•
Biology
•
11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is hypertrophy?
Back
Hypertrophy is the enlargement of muscle fibers due to increased workload, commonly seen in weightlifting.
2.
FLASHCARD QUESTION
Front
What is the role of the sarcoplasmic reticulum in muscle contraction?
Back
The sarcoplasmic reticulum stores calcium ions and releases them during muscle contraction, but it does not release acetylcholine.
3.
FLASHCARD QUESTION
Front
What is the Z disk in muscle anatomy?
Back
The Z disk is the boundary between sarcomeres, serving as an anchor for actin filaments.
4.
FLASHCARD QUESTION
Front
What happens to calcium levels during sustained muscle contraction?
Back
Calcium levels remain high, allowing the muscle to continue contracting.
5.
FLASHCARD QUESTION
Front
What is glycolysis?
Back
Glycolysis is the process of breaking down glucose to produce ATP without the use of oxygen, especially during anaerobic exercise.
6.
FLASHCARD QUESTION
Front
What is atrophy in the context of muscles?
Back
Atrophy is the decrease in muscle size and strength due to disuse or lack of stimulation.
7.
FLASHCARD QUESTION
Front
What is the function of acetylcholine in muscle contraction?
Back
Acetylcholine is a neurotransmitter that transmits signals from nerves to muscles, initiating contraction.
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