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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Students have asked these similar questions
In the context of muscles, define (a) agonist, (b) antagonist, and (c) synergist. Why are there muscles that can “undo” actions produced by other muscles?
Muscular strength is defined as the:
a) ability of a muscle to contract
with maximal force
O b) ability to move the joints through
a full range of motion
O c) ability to sustain a given level of
muscular tension over time
d) amount of force a muscle can
produce repeatedly over 60
seconds
Which of the following is found on the outside of skeletal muscles?
a). Myofibrilsb). Sheathc). Bundlesd). Sarcomere
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
- By what mechanism are skeletal muscles induced to relax?arrow_forwardList the principal functions of skeletal muscles.arrow_forwardMuscular endurance is defined as the: O a) ability of a muscle to contract repeatedly over an extended period of time b) amount of force a muscle can produce with a single maximal effort O c) ability to move the joints through a full range of motion O d) amount of time required to contract a muscle completelyarrow_forward
- Slow twitch muscle fibers are characterized by all of the following EXCEPT: O a) used in endurance type of activities O b) contract rapidly and forcefully Oc) resistant to fatigue O d) have a direct relationship to the oxidative energy systemarrow_forwardHow is smooth muscle contraction similar to skeletal musclecontraction?arrow_forwardA muscle fiber is the same thing as a: a) myofibril. b) myocyte. c) myofilament. d) fascicle.arrow_forward
- What is the difference between the proximal and distal attachment of a skeletal muscle?arrow_forwardAs we begin to learn about muscles, how does the "design" of the different muscles types help with their function? (ie. what kind of control do we have of each type [smooth, cardiac, and skeletal] and how that effects the role of that type of muscle).arrow_forwardWhich of the following statements are true? Multiple Choice Muscles work in antagonistic pairs because if one muscle shortens during contraction, the opposing muscle across the joint must relax. Muscles work in antagonistic pairs because tendons lengthen during contraction. Muscles work in antagonistic pairs because muscles lengthen during contraction. Muscles work in antagonistic pairs because if one muscle pushes during contraction, the opposing muscle across the joint must pull.arrow_forward
- How do Golgi tendon organs monitor muscle tension?arrow_forwardDefine the following terms in relation to muscle and give an example of each:origin, insertion, agonist, antagonist, synergistarrow_forwardCharacteristics of smooth muscles fibers are: spindle shaped, unbranched, unstriated, uninucleate and involuntary spindle shaped, unbranched, multistriated, uninucleate and involuntary cylinderical, unbranched, unstriated, uninucleate and involuntary Cylindrical, unbranched, striated, multinucleate and involuntary Fat cells are characterized by: affected by starvation present in adults they are heat insulator they have signet ring appearance abundant mitochondriaarrow_forward
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