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 1RQ
In a general sense, how do skeletal muscles produce movement?
Expert Solution & Answer
Summary Introduction
To explain: In general, the ways in which skeletal muscles produce movement.
Introduction: In an adult, 40 to 50% of the body weight is contributed by skeletal muscles. It is primarily attached to the skeleton of the body but also found at the opening of urinary tracts and gastrointestinal tracts.
Explanation of Solution
Skeletal muscles are mainly attached to the bones in groups or in pairs. These muscles help in movement of bones around joints by creating contraction and relaxation of muscles. Contraction of muscles that are attached to the bones produce large movements involved in localized movement and running.
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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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- You are training athletes for the 100-meter dash. They need muscles specialized for speed and strength, not endurance. What muscle characteristics would your training regimen aim to develop? How would you alter it to train a long-distance swimmer?arrow_forwardWhat is a motor unit? Why does a rapid series of muscle twitches yield a stronger overall contraction than a single twitch?arrow_forwardWhat is the function of the sarcoplasmic reticulum in muscle cell contraction?arrow_forward
- Figure 13.22 To what structures in a skeletal muscle are the endoneurium, perineurium, and epineurium comparable? Figure 13.22 Close-Up of Nerve Trunk Zoom in on this slide of a nerve trunk to examine the endoneurium, perineurium, and epineurium in greater detail (tissue source: simian). LM × 1600. (Micrograph provided by the Regents of University of Michigan Medical School © 2012)arrow_forwardSkeletal muscle contraction requires _________. a. calcium ions b. ATP c. arrival of a nerve impulse d. all of the abovearrow_forwardAny abnormal condition of skeletal muscles is known as _______________________.arrow_forward
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