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Human Biology (MindTap Course List)

11th Edition
Cecie Starr + 1 other
ISBN: 9781305112100

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BuyFindarrow_forward

Human Biology (MindTap Course List)

11th Edition
Cecie Starr + 1 other
ISBN: 9781305112100
Textbook Problem

Match the M words with their defining features.

_____ muscle    a.    actin’s partner

_____ muscle twitch    b.    delivers contraction signal

_____ muscle tension    c.    a muscle cannot contract

_____ myosin    d.    motor unit response

_____ motor neuron    e.    force exerted by cross-bridges

_____ myofibrils   

_____ muscle fatigue    f.    muscle cells bundled in connective tissue

    g.    threadlike parts in a muscle fiber

Summary Introduction

To match: The M words with their defining features.

Explanation

Muscle: f. muscle cells bundled in connective tissue

Muscle is represented as the bunch of muscle cells bundled in connective tissue that help in movement of bones around joints by creating contraction and relaxation of the muscle.

Muscle twitch: d. motor unit response

A muscle twitch generates, when muscle contraction occurs due to multiple motor unit stimulation.

Muscle tension: e. force exerted by cross-bridges

Muscle tone is a force that exerted by the cross-bridge during muscle contraction. Muscle tone occurs when the contraction of muscle responds more easily to the stimulation that is required for muscle movements and in relaxation state muscle tone is absent.

Myosin: a. actin’s partner

During muscle contraction, myosin is a partner of actin...

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