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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Chapter 10, Problem 25RQ
If cardiac muscle cells were prevented from undergoing aerobic
- undergo glycolysis
- synthesize ATP
- stop contracting
- start contracting
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The correct order for the smallest to the largest unit of organization in muscle tissue is ________.
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myofibril, muscle fiber, filament, fascicle
Skeletal muscle cells have the ability to do all of the following EXCEPT _____.
activating other muscle cells to contract
producing force while shortening
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rebounding to their former length after being stretched
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One important structure/feature of a muscle cell is
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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- In an isometric contraction, the muscle ________." shortens without a load does not change in length but increases tension is not stimulated by a motor neuron is unable form cross-bridges and fails to develop tension Which method of regenerating ATP is used in a very short duration activity, such as a 100m sprint, because it is the most rapid method of regenerating ATP?" aerobic respiration in the mitochondria glycolysis in the mitochondria anaerobic respiration in the cytoplasm (or cytosol) breaking a phosphate bond on phosphocreatine The metabolic pathway that results in the production of two net ATPs per glucose plus two pyruvic acid molecules ________. only occurs within the mitochodria is called glycolysis only occurs when there is no oxygen present is the main method of generating ATP for maximum effort activities that last 1-2 Where does overÊ95% of a skeletal muscle cell's energyÊcome from during both rest andÊmoderate exercise? creatine phosphate lactic acid anaerobic…arrow_forwardSkeletal muscle cell(key terms: striated, contracting proteins, contractions, nucleus location) This feature of the muscle cell helps to do its job becausearrow_forwardAfter death, a person no longer makes ATP, and calcium stored in the specialized endoplasmic reticulum of muscle fibers diffuses down its concentration gradient into the muscle cytoplasm. The result is rigor mortis—an unbreakable state of muscle contraction. Explain why the contraction occurs and why it is irreversible.arrow_forward
- A difference between marathon runners and sprinters is ______. sprinters perform better in activities that require slow, steady muscle activity sprinters have a high proportion of muscle fibers that require oxygen to make ATP marathon runners have more fast-twitch muscle fibers in their leg muscles marathon runners have more slow-twitch fibers in their leg musclesarrow_forwardSmooth muscle is characterized by all of the following except _______. Group of answer choices has caveolae to sequester extracellular calcium is usually in two layers circular and longitudinal to contract and relax hollow organs there are noncontractile intermediate filaments that attach to dense bodies within the cell neuromuscular junction has no sarcomeres or T-tubulesarrow_forwardIn the absence of _____, a contracted skeletal muscle will not relax but will develop rigor mortis calcium magnesium adenosine diphosphate adenosine triphosphate glucosearrow_forward
- Skeletal muscles would be expected to contain large numbers of ————— because of their high energy demands 1. Lysosomes 2.cilia 3. Mitochondria 4. Chloroplastsarrow_forwardThe correct order for the smallest to the largest unit oforganization in muscle tissue is ________.a. fascicle, filament, muscle fiber, myofibrilb. filament, myofibril, muscle fiber, fasciclec. muscle fiber, fascicle, filament, myofibrild. myofibril, muscle fiber, filament, fasciclearrow_forwardMatch the following terms with the correct numbers in the figure below Sarc oplasmic reticulum Nucleus Buiging. biceps 8. Muscle 7. Mitochondrion-L 6. "Sheath surrounding 4. the muscle fiber 3.arrow_forward
- Why would cardiac muscle cells and some smooth muscle cells.continue to contract even when their nerve supply has been removed or severed?arrow_forwardThe sacroplasmic reticulum must release _______ before myosin heads can attach to actin so that a muscle fiber can contract. A ATP B calcium C sodium D acetylcholinearrow_forwardUnlike skeletal muscle smooth muscle Mayer spontaneously contract when it is. What feature of smooth muscle allows it to stretch without immediately resulting in a strong contraction?arrow_forward
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