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 29RQ
Which cell type helps to repair injured muscle fibers?
- ganglion cells
- myotube cells
- myoblast cells
- satellite cells
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Which of the following cells have multiple processes extending from the soma?
Multiple Choice
Smooth muscle cells
Neuroglia
Neurons
Skeletal muscle cells
The mechanism of contraction in smooth muscle is different from skeletal muscle in that
the site of calcium binding differs
ATP energizes the sliding process
actin and myosin interact by the sliding filament mechanism
the trigger for contraction is a rise in intracellular calcium
the thick filaments have fewer myosin heads
Which of these does NOT apply to smooth muscle cells?
actin and myosin filaments are arranged in sacromeres
calcium is required for contraction to occur
during contraction myosin proteins attach to and pull on actin
cells can divide to replace neighboring cells that are injured or destroyed
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 _____ is the basic unit of muscle contraction. a. myofibril b. sarcomere c. muscle fiber d. myosin filamentarrow_forwardWhich component is responsible for initially stimulating a muscle contraction? a. proteins b. electrochemical signals c. plasma membranes d. striationsarrow_forwardWhat aspect of creatine phosphate allows it to supply energy to muscles? ATPase activity phosphate bonds carbon bonds hydrogen bondsarrow_forward
- Compared to skeletal muscle, smooth muscle None of the choices are correct Has equal thick and thin filaments Uses calcium from the extracellular fluid only Has the same contractile and regulatory proteins. Has much more thick filaments than thin filamentsarrow_forwardWhat allows cardiac muscle and smooth muscle to be excited and contract nearly simultaneously? ganglia intermediate fibers cross bridges motor and plates Gap junctionsarrow_forwardChoose ALL the characteristics below that would help to identify skeletal muscle under the microscope: One centrally located nucleus per cell Striations Multiple nuclei per cell Nuclei at the periphery of the cellarrow_forward
- Which of the following characteristics is shared by all types of muscle tissue? Question 5 options: striated banding patterns seen under the microscope interactions between actin and myosin a response that can be consciously controlled cells that lengthen when appropriately stimulatedarrow_forwardWhich characteristic or component is NOT shared by skeletal muscle and cardiac muscle? I. Electrical coupling between cells II. Thick and thin filaments arranged in sarcomeres III. troponin IV. Spontaneous depola membrane potentialarrow_forwardWhich is not one of the four properties of skeletal muscle tissue? Group of answer choices Elasticity Reversibility Irritability Extensibilityarrow_forward
- What intracellular protein of smooth muscle cells binds calcium and leads to contraction? phosphagen creatine tropomyosin calmodulinarrow_forwardSmooth muscle differs from skeletal muscle in: (more than one answer may be correct)Question 6 options: the source of calcium needed for contraction that smooth muscle has no transverse tubules that smooth muscle does not use calcium to begin contractions that smooth muscle does not use myosin to bind to actin the non-parallel arrangement of sarcomeres, resulting in no striationsarrow_forwardHow does muscles get bigger with resistance training? atrophy occurs myopathy occurs muscle cells grow muscle cells dividearrow_forward
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