LooseLeaf for Human Anatomy
5th Edition
ISBN: 9781259285271
Author: Michael McKinley Dr., Valerie O'Loughlin, Elizabeth Pennefather-O'Brien
Publisher: McGraw-Hill Education
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Chapter 10, Problem 9WYL
Summary Introduction
To determine:
The differences between isotonic and isometric contractions along with an example.
Introduction:
Some motor units are always active, even when a muscle is at rest. These motor units produce tension but not enough tension to cause movement. The resting tension in a skeletal muscle is called muscle tone.
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Explain the differences between isometric and isotonic contractions.
Define and provide and example
Describe the structural relationships among the following in aresting skeletal muscle fiber: A band, H zone, M line.
Chapter 10 Solutions
LooseLeaf for Human Anatomy
Ch. 10 - What are the properties of muscle tissue?Ch. 10 - List and describe the connective tissue components...Ch. 10 - Describe how muscle attachments are organized to...Ch. 10 - Compare and contrast myofibrils and myofilaments.Ch. 10 - Prob. 5WYLCh. 10 - Describe the structural relationship between a...Ch. 10 - Prob. 7WYLCh. 10 - Prob. 8WYLCh. 10 - Prob. 9WYLCh. 10 - List the three types of skeletal muscle fibers,...
Ch. 10 - Prob. 11WYLCh. 10 - Prob. 12WYLCh. 10 - Prob. 13WYLCh. 10 - Prob. 14WYLCh. 10 - Prob. 15WYLCh. 10 - Describe smooth muscle cell structure. What are...Ch. 10 - Prob. 1MCh. 10 - Prob. 1MCCh. 10 - Prob. 2MCCh. 10 - Prob. 3MCCh. 10 - The plasma membrane of a skeletal muscle fiber is...Ch. 10 - In a skeletal muscle fiber, a triad is composed of...Ch. 10 - Prob. 6MCCh. 10 - Prob. 7MCCh. 10 - Prob. 8MCCh. 10 - Prob. 9MCCh. 10 - Which of the following changes in skeletal muscles...Ch. 10 - Compare the roles of the three concentric layers...Ch. 10 - Prob. 2CRCh. 10 - Prob. 3CRCh. 10 - Prob. 4CRCh. 10 - Describe in your own words the events that occur...Ch. 10 - Prob. 6CRCh. 10 - Briefly describe the differences between muscle...Ch. 10 - Explain why athletes who excel at short sprints...Ch. 10 - Prob. 9CRCh. 10 - Describe the structure of intercalated discs in...Ch. 10 - Prob. 1DCRCh. 10 - Prob. 2DCRCh. 10 - Prob. 3DCR
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- Explain why (a) calcium ions and (b) ACh are vital for muscle contraction.arrow_forwardDistinguish between concentric, isometric and eccentric contractions, the physiology of the contraction, and what function it serves. Give examples of tasks that involve each type.arrow_forwardIdentify the nature and physiological significance of the series-elastic component of muscle contraction.arrow_forward
- distinguish between concentric and eccentric contraction.arrow_forwardList the Mechanics of Single-Fiber Contraction?arrow_forwardDescribe the three steps (in detail) and the regions where these steps occur required for a skeletal muscle contraction to occur. Diagram(s) is (are) encouraged.arrow_forward
- What is the difference between isometric and isotonic contractions?arrow_forwardExplain the length-tension relationship in skeletal muscle contraction.arrow_forwardDiscuss the structure of a muscle fiber indicating the location of the following:epimysium, perimysium, myofibrils and sarcolemma.arrow_forward
- Identify the major events that occur during skeletal musclefiber contraction.arrow_forwardDistinguish between skeletal, smooth, and cardiac muscle in terms of location and whether they have sarcomeres. Use the sliding filament model to draw how thin filaments, thick filaments, and Z lines move during muscle contraction. Predict how perturbations of acetylcholine release, reception, or breakdown will influence muscle contraction. Predict how perturbations of actin, troponin, tropomyosin, myosin, or calcium would influence muscle contraction. Distinguish between the sympathetic and parasympathetic nervous system. Predict how changes in stress levels or situations would affect activation of the sympathetic and parasympathetic nervous system, levels of epinephrine and norepinephrine, and blood pressure.arrow_forwardDefine the sliding filament model of muscle contraction. Describe the steps of this process.arrow_forward
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