Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 41, Problem 5MC
Summary Introduction
Introduction:
Muscles are defined as soft tissues that are found in humans and animals. It contains filament protein such as actin and myosin that are responsible for the contraction of the muscle. Muscles also help to produce force and motion.
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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 muscle tissue types does not exhibit striations?
a. cardiac muscles
b. skeletal muscles
c. smooth muscles
d. a and b
e. b and c
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.
Chapter 41 Solutions
Biology
Ch. 41.1 - Prob. 1TCCh. 41.1 - Prob. 2TCCh. 41.1 - Prob. 1CSCCh. 41.1 - White meat or dark? It seems almost everyone has a...Ch. 41.1 - Prob. 1CYLCh. 41.1 - Prob. 2CYLCh. 41.1 - Prob. 3CYLCh. 41.1 - explain how the nervous system causes contraction...Ch. 41.2 - describe the similarities and differences between...Ch. 41.2 - compare cardiac and smooth muscle to skeletal...
Ch. 41.3 - Why are thick, armor like exoskeletons found...Ch. 41.3 - Prob. 2TCCh. 41.3 - Prob. 3TCCh. 41.3 - Prob. 1CSCCh. 41.3 - Prob. 1CTCh. 41.3 - Prob. 1CYLCh. 41.3 - Prob. 2CYLCh. 41.3 - list and describe the functions of the different...Ch. 41.3 - explain how a bone fracture is repaired and how...Ch. 41.3 - Prob. 5CYLCh. 41 - Prob. 1MCCh. 41 - Prob. 2MCCh. 41 - Prob. 3MCCh. 41 - Prob. 4MCCh. 41 - Prob. 5MCCh. 41 - The three types of skeletal systems found in...Ch. 41 - Prob. 2FIBCh. 41 - A skeletal muscle cells is called a(n)__________....Ch. 41 - Prob. 4FIBCh. 41 - Prob. 5FIBCh. 41 - Prob. 6FIBCh. 41 - Prob. 7FIBCh. 41 - Sketch a relaxed muscle fiber containing a...Ch. 41 - Describe the process of skeletal muscle...Ch. 41 - Explain the following two statements: Muscles can...Ch. 41 - What are the three types of skeletons found in...Ch. 41 - Compare the structures of the following pairs:...Ch. 41 - Explain the functions of osteoblasts and...Ch. 41 - Describe a hinge joint and how it is moved by...Ch. 41 - Discuss some of the problems that would result. If...Ch. 41 - Prob. 2AC
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- Skeletal muscle and cardiac muscle are similar in that both types of muscle a. have cells that branch. b. contain intercalated discs. c. are under involuntary control. d. are striated.arrow_forwardWhich 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 abovearrow_forwardWhat do skeletal muscle contractions share in common with smooth muscle contractions?a. Both types of contractions do not require calcium ions for a contraction to occur.b. Both types of contractions generate little force or a weak force.c. Both types of contractions consume very little ATP.d. Both types of contractions result from thick and thin filaments sliding past one another.arrow_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_forwardCardiac 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_forwardAll of the following characteristics apply to skeletal muscle except a. They are striated. b. They are multinucleated. c. They are voluntary. d. They contain intercalated discs. e. They are attached to the skeleton by means of tendons.arrow_forward
- When skeletal muscle fibers are damaged and die, they may be replaced with dense irregular collagenous connective tissue, commonly known as scar tissue. a. How do these two tissue types differ in structure?b. How do they differ in function?c. Predict the impact of such an injury to muscle tissue on the function of a whole skeletal muscle.arrow_forwardMatch the following features of the muscle tissue. 1 Muscle tissue function. 2 It is a voluntary muscle. 3 It is striated and located in the heart. 4 It is striated and attached to bones. A. Contraction and movement. B. Cardiac Muscle. C. Skeletal Muscle D. Skeletal musclearrow_forwardWhich of the following statements best describes the sliding filament mechanism of muscle contraction? a. Actin and myosin filaments do not shorten, but rather, slide past each other. b. Actin and myosin filaments shorten and slide past each other. c. As they slide past each other, actin filaments shorten, but myosin filaments do not shorten. d. As they slide past each other, myosin filaments shorten, but actin filaments do not shorten.arrow_forward
- Mark 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 connective tissue cell is a tissue macrophage? a.Mast cell b.Plasma cell c.Fibroblast d.Myofibroblast 2. When a skeletal muscle fiber contracts, a.the H bands and I bands get smaller b.the zones of overlap get larger. c.the Z lines get closer together. d.All of the answers are correct.arrow_forwardContractions in _______ fibers are asynchronous while contractions in is _______ fibers are synchronous. a. smooth muscle; smooth muscle b. smooth muscle; skeletal muscle c. skeletal muscle; smooth muscle d. skeletal muscle; skeletal muscle e. none of the abovearrow_forward
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