Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 10, Problem 14RQ
Thin and thick filaments are organized into functional units called ________.
- myofibrils
- myofilaments
- T-tubules
- sarcomeres
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Z lines
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Chapter 10 Solutions
Anatomy & Physiology
Ch. 10 - Watch this video...Ch. 10 - Every skeletal muscle fiber is supplied by a motor...Ch. 10 - The release of calcium ions initiates muscle...Ch. 10 - Muscle that has a striped appearance is described...Ch. 10 - Which element is important in directly Triggering...Ch. 10 - Which of the following properties is not common to...Ch. 10 - The correct order for the smallest to the largest...Ch. 10 - Depolarization of the sarcolemma means ________....Ch. 10 - In relaxed muscle, the myosin-binding site on...Ch. 10 - According to the sliding filament model, binding...
Ch. 10 - The cell membrane of a muscle fiber is called...Ch. 10 - Muscle relaxation occurs when ________. calcium...Ch. 10 - During muscle contraction, the cross-bridge...Ch. 10 - Thin and thick filaments are organized into...Ch. 10 - During which phase of a twitch in a muscle fiber...Ch. 10 - Muscle fatigue is caused by ________. buildup of...Ch. 10 - A sprinter would experience muscle fatigue sooner...Ch. 10 - What aspect of creatine phosphate allows it to...Ch. 10 - Dmg X blocks ATP regeneration from ADP and...Ch. 10 - The muscles of a professional sprinter are most...Ch. 10 - The muscles of a professional marathon runner are...Ch. 10 - Which of the following statements is true? Fast...Ch. 10 - Which of the following statements is false? Slow...Ch. 10 - Cardiac muscles differ from skeletal muscles in...Ch. 10 - If cardiac muscle cells were prevented from...Ch. 10 - Smooth muscles differ from skeletal and cardiac...Ch. 10 - Which of the following statements describes smooth...Ch. 10 - From which embryonic cell type does muscle tissue...Ch. 10 - Which cell type helps to repair injured muscle...Ch. 10 - Why is elasticity an important quality of muscle...Ch. 10 - What would happen to skeletal muscle if the...Ch. 10 - Describe how tendons facilitate body movement.Ch. 10 - What are the five primary functions of skeletal...Ch. 10 - What are the opposite roles of voltage-gated...Ch. 10 - How would muscle contractions be affected if...Ch. 10 - What causes the striated appearance of skeletal...Ch. 10 - How would muscle contractions be affected if ATP...Ch. 10 - Why does a motor unit of the eye have few muscle...Ch. 10 - What factors contribute to the amount of tension...Ch. 10 - Why do muscle cells use creatine phosphate instead...Ch. 10 - Is aerobic respiration more or less efficient than...Ch. 10 - What changes occur at the cellular level in...Ch. 10 - What changes occur at the cellular level in...Ch. 10 - What would be the drawback of cardiac contractions...Ch. 10 - How are cardiac muscle cells similar to and...Ch. 10 - Why can smooth muscles conn act over a wider range...Ch. 10 - Describe the differences between single-unit...Ch. 10 - Why is muscle that has sustained significant...Ch. 10 - Which muscle type(s) (skeletal, smooth, or...
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- The correct order for the smallest to the largest unit of organization in muscle tissue is ________. fascicle, filament, muscle fiber, myofibril filament, myofibril, muscle fiber, fascicle muscle fiber, fascicle, filament, myofibril myofibril, muscle fiber, filament, fasciclearrow_forwardWhich of the following regions of a sarcomere does not change length during a contraction because it represents the length of the thick myosin filaments. Group of answer choices Z disk H band A band I bandarrow_forwardSkeletal muscle cells have the ability to do all of the following EXCEPT _____. activating other muscle cells to contract producing force while shortening responding to chemicals released by nerve cells rebounding to their former length after being stretchedarrow_forward
- In the absence of _____, a contracted skeletal muscle will not relax but will develop rigor mortis calcium magnesium adenosine diphosphate adenosine triphosphate glucosearrow_forwardA skeletal muscle can often maintain a moderate level of active tension for long periods of time, even though many of its fibers become fatigued Explain.arrow_forwardExplain why it’s correctarrow_forward
- Slow-twitch (type I/red) fibers have a distinctive feature: fatigue easily relatively low quantities of glycogen relatively low quantities of myoglobin show a fast response relatively low quantities of mitochondriaarrow_forwardTrue/False: Myofibrils are made up of a number of sarcomeres arranged end-to-end.arrow_forwardSarcomeres that are very long at rest generate low amounts of tension because there is very little overlap between myosin heads and actin filaments. True Falsearrow_forward
- Thick myofilaments contain which of the following? (Select all that apply) troponin actin myosin |tropomyosinarrow_forwardSkeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) This feature of the muscle cell helps to do its job becausearrow_forwardWhich of the following proteins in the skeletal muscle myofiber anchors thick filaments to the Z line? Actin Titin Tropomyosin Myosinarrow_forward
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