Biology with Connect Access Card
10th Edition
ISBN: 9780077705701
Author: Raven, Peter
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 42, Problem 8U
Skeletal muscle cells are
a. large multinucleate cells that arise by growth.
b. large multinucleate cells that arise by fusion of smaller cells.
c. small cells connected by many gap junctions.
d. large cells with a single nucleus.
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Students have asked these similar questions
Which of the following statements is true?
a.Cardiac muscle cells are found in the heart and large blood vessels.
b.Cardiac muscle cells have many nuclei.
c.Striated muscle cells are long and cylindrical with many nuclei.
d.Smooth muscle cells have T tubules.
Which of the following characteristics does not apply to skeletal muscle tissue?
a.
striated
b.
voluntary
c.
multinucleated
d.
spindle shaped cells
e.
All of the above are correct
Which of the following statements relating to smooth muscle is true?
a. single-unit smooth muscles contract rhythmically due to gap junctions
b. multi-unit smooth muscles are arranged like skeletal muscle motor units
c. visceral smooth muscles exhibit spontaneous action potentials
d. multi-unit smooth muscles exhibit graded contractions in response to neural stimuli
e. all of the above
Chapter 42 Solutions
Biology with Connect Access Card
Ch. 42 - Which of the following cavities would contain your...Ch. 42 - Epithelial tissues do all of the following except...Ch. 42 - Prob. 3UCh. 42 - Connective tissues include a diverse group of...Ch. 42 - Prob. 5UCh. 42 - Prob. 6UCh. 42 - The function of neuroglia is to a. carry messages...Ch. 42 - Skeletal muscle cells are a. large multinucleate...Ch. 42 - Connective tissues, although quite diverse in...Ch. 42 - Prob. 1A
Ch. 42 - Prob. 2ACh. 42 - Suppose that an alien virus arrives on Earth. This...Ch. 42 - Homeostasis a. is a dynamic process. b. describes...Ch. 42 - Prob. 5ACh. 42 - The three types of muscle all share a. a structure...Ch. 42 - Suppose that you discover a new disease that...Ch. 42 - Which organ systems are involved in regulation and...Ch. 42 - We have all experienced hunger pangs. Is hunger a...Ch. 42 - Why is homeostasis described as a dynamic process?...
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- Cardiac muscle cells differ from skeletal muscle cells because: a. They can respond to neurotransmitters.b. They are striated.c. They contain intercalated discs and gap junctions.d. They require calcium for contraction.arrow_forwardMark the following statements as true for smooth muscle tissue, cardiac muscle tissue, and/or skeletal muscle tissue. a. _____ Actin attaches to dense bodies. b. _____ Cells are joined by intercalated discs. c. _____ The thick and thin filaments are arranged into sarcomeres. d. _____ The thick filaments contain myosin heads along their entire length. e. _____ The cells depolarize and contract as a unit. f. _____ Calcium ions binding to troponin is the initiating event of contraction. g. _____ Calcium ions binding to calmodulin is the initiating event of contraction. h. _____ The sarcolemma has a distinct motor end plate.arrow_forwardWhich cell type helps to repair injured muscle fibers?a. ganglion cellsb. myotube cellsc. myoblast cellsd. satellite cellsarrow_forward
- Some tissues can regenerate more easily from adult stem cells than others. Which of the following cells are always being regenerated by stem cells? A. muscles B. neuron helpers called glia C. tendons D. blood 2arrow_forwardWhat type of cells sit outside the sarcolemma of a muscle fiber but below the basement membrane of the muscle fiber and retain their ability to divide? a.) Myoblasts b.) Myostatin cells c.) Myotubes d.) Satellite cellsarrow_forwardThe cell in the center of the electron micrograph above is important in wound healing and plays a role in the pathological process underlying Dupuytren's contracture. Which of the following cell types is depicted? A. Endothelial cell B. Myoepithelial cell C. Myofibroblast D. Pericyte E. Smooth muscle cellarrow_forward
- Which of the following is true? A. Muscle fibers either will contract with all the force possible under existing conditions or will not contract at all. B. Skeletal muscles can contract with varying degrees of strength given different circumstances. C. Muscle length does not have an effect on contractile strength. D. Metabolic condition of the myocyte does not have an effect on contractile strength.arrow_forwardWhich of the following statements describes smoothmuscle cells?a. They are resistant to fatigue.b. They have a rapid onset of contractions.c. They cannot exhibit tetanus.d. They primarily use anaerobic metabolism.arrow_forwardWhich of the following describes a similarity between cardiac and smooth muscle cells?a. An action potential always precedes contraction.b. The majority of the Ca21 that activates contraction comes from theextracellular fluid.c. Action potentials are generated by slow waves.d. An extensive system of T-tubules is present.e. Ca21 release and contraction strengths are gradedarrow_forward
- Which of the following changes takes place when a skeletal muscle contracts?A. Z discs move farther apart.B. Actin filaments contract.C. Myosin filaments contract.D. Sarcomeres become shorter.arrow_forwardFrom which embryonic cell type does muscle tissuedevelop?a. ganglion cellsb. myotube cellsc. myoblast cellsd. satellite cellsarrow_forwardThe functions of tropomyosin in skeletal muscle include A. releasing calcium ions after initiation of contraction. B. generating ATP which it passes to the contractile mechanism. C. binding to myosin during contraction. D. acting as a relaxing protein at rest by covering up the sites where myosin binds to actin. E. sliding on actin to produce shortening.arrow_forward
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