Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 7RQ
What is a motor unit? Why does a rapid series of muscle twitches yield a stronger overall contraction than a single twitch?
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why does a rapid series of muscle twitches yield a stronger overall contraction than a single twitch?
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Chapter 6 Solutions
Human Biology (MindTap Course List)
Ch. 6 - In a general sense, how do skeletal muscles...Ch. 6 - In the diagram below, label the fine structure of...Ch. 6 - How do actin and myosin interact in a sarcomere to...Ch. 6 - How does a muscle fiber incur an oxygen debt?Ch. 6 - What is the function of the sarcoplasmic reticulum...Ch. 6 - Explain why (a) calcium ions and (b) ACh are vital...Ch. 6 - What is a motor unit? Why does a rapid series of...Ch. 6 - What are the structural and functional differences...Ch. 6 - Prob. 1SQCh. 6 - Prob. 2SQ
Ch. 6 - Prob. 3SQCh. 6 - The _____ is the basic unit of muscle contraction....Ch. 6 - Skeletal muscle contraction requires _________. a....Ch. 6 - Nerve impulses first stimulate a skeletal muscle...Ch. 6 - Prob. 7SQCh. 6 - Prob. 8SQCh. 6 - Prob. 9SQCh. 6 - Prob. 10SQCh. 6 - You are training athletes for the 100-meter dash....Ch. 6 - Prob. 2CTCh. 6 - Prob. 3CTCh. 6 - At the gym Sean gets on a stair-climbing machine...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- How do actin and myosin interact in a sarcomere to bring about muscle contraction? What roles do ATP and calcium play?arrow_forwardIn a general sense, how do skeletal muscles produce movement?arrow_forwardWhich of the following is not true when comparing slow twitch red and fast twitch white muscle fibers? Question 2 options: a) Red contain more mitochondria than white b) Red contain more myoglobin than white c) Red contracts more slowly than white d) Red contain more glycogen stores than whitearrow_forward
- What is the sliding filament theory? How do components of the sarcomere change during a muscle contraction?arrow_forwardWhy does repeated stimulation of the muscle (at maximum stimulus) before it has completely recovered from the previous contraction lead to increasing force of contractions?arrow_forwardWhat is the role of ATP and ATP hydrolysis in the cycle of actin-myosin association and disassociation that leads to muscle contraction?arrow_forward
- What two types of microfilament make up the muscle sarcomere? Which motor protein is primarily involved in muscle contraction?arrow_forwardWhat is the importance of acetylcholinesterase in muscle cell contraction?arrow_forwardDuring a single muscle twitch, the sarcomeres within a muscle contract maximally. How can you explain the difference in the force generated (and the amount of finger movement) when only the frequency was increased?arrow_forward
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