Which Of The Following Statements Describes Myofibrils . Which of the following statements best describes the sliding filament mechanism of muscle contraction?a. Fast fibers have a small diameter.
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Which of the following statements describes smooth muscle cells? Which of the following statements is true? Red skeletal muscles, also called short skeletal muscles, are capable of sustained contraction over a long period of time which of the following is the basic unit of muscle contraction?
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B) contracts in response to stretch. A a) they are resistant to fatigue. Which of the following best describes an attribute of visceral smooth muscle not shared by skeletal muscle? 2) which of the following statements describes how muscles help maintain homeostasis?
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A) the contractions of skeletal muscles pull on tendons and move elements of the skeleton. B) contracts in response to stretch. A a) they are resistant to fatigue. They have a rapid onset of contractions. Because myofibrils are only approximately 1.2 μm in diameter, hundreds to thousands (each with thousands of sarcomeres) can be found inside one muscle fiber.
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They are resistant to fatigue. T tubules are infoldings of the plasma membrane that encircle the myofibrils and are in contact with the sarcoplasmic reticulum. ·a.) a double tail with a double head ·b.) a double head with no tail ·c.) a single tail with a double head ·d.) a single tail with a single head _____ released from a.
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Fast fibers have large glycogen reserves. Fast fibers contain loosely packed myofibrils. Smooth muscles cells contain caveolae that sequesters calcium ions d. They primarily use anaerobic metabolism. Fast fibers have a small diameter.
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A) they exhibit spontaneous action potentials. Myosin and tubulin which of the following statements is true? Which of the following best describes the term sarcoplasmic reticulum? T tubules are infoldings of the plasma membrane that encircle the myofibrils and are in contact with the sarcoplasmic reticulum. A a) they are resistant to fatigue.
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Myofibrils extend the length of a skeletal muscle fiber. Which of the following statements describes a critical event that occurs at the neuromuscular junction? Which of the following statements correctly describes the composition of a myosin filament? What are long chains of myofilaments called? T tubules are infoldings of the plasma membrane that encircle the myofibrils and are in contact.
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A) contraction is atp dependent. Which of the following statements best describes the sliding filament mechanism of muscle contraction?a. Fast fibers have a small diameter. They have a rapid onset of contractions. Which of the following statements about myofibrils is not correct?
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B) they consist of muscle fibers that are structurally independent of each other. C.) jogging every morning will increase the number of blood capillaries. Fast fibers have large glycogen reserves. A.) white skeletal muscles have more myoglobin and capillaries than red skeletal muscles. Which of the following statements about the microscopic struct of smooth muscle fibers is false?
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D) they depend upon recruitment using the autonomic nervous system. Fast fibers contain loosely packed myofibrils. Which of the following best describes an attribute of visceral smooth muscle not shared by skeletal muscle? B) skeletal muscles are responsible for guarding the openings of the digestive and urinary tracts. What are long chains of myofilaments called?
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2) which of the following statements describes how muscles help maintain homeostasis? Acetylcholine binds to its receptor in the junctional folds of the sarcolemma. They have a rapid onset of contractions. ·a.) a double tail with a double head ·b.) a double head with no tail ·c.) a single tail with a double head ·d.) a single tail with a.
