Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 41, Problem 3MC
Summary Introduction
Introduction:
Muscle is defined as the soft tissues found in animals and humans. It is composed of actin and myosin protein filaments that slide one another and cause contraction of the muscle. It helps to produce force and motion. There are three types of muscles such as striated muscle, non-striated and cardiac muscle.
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Chapter 41 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 41.1 - The legs of champion sprinters like Usain Sort...Ch. 41.1 - Prob. 1CYLCh. 41.1 - White meat or dark? It seems almost everyone has a...Ch. 41.1 - Prob. 1TCCh. 41.1 - Prob. 2CYLCh. 41.1 - Prob. 2TCCh. 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 - As Bolt s and Kimettos athletic feats attest,...Ch. 41.3 - Prob. 1CSRCh. 41.3 - Prob. 1CYLCh. 41.3 - Prob. 1ETCh. 41.3 - Why are thick, armor like exoskeletons found...Ch. 41.3 - Prob. 2CYLCh. 41.3 - Prob. 2TCCh. 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 - Discuss some of the problems that would result. If...Ch. 41 - The three types of skeletal systems found in...Ch. 41 - Prob. 1MCCh. 41 - Sketch a relaxed muscle fiber containing a...Ch. 41 - Prob. 2ACCh. 41 - Prob. 2FIBCh. 41 - Prob. 2MCCh. 41 - Describe the process of skeletal muscle...Ch. 41 - A skeletal muscle cells is called a(n)__________....Ch. 41 - Prob. 3MCCh. 41 - Explain the following two statements: Muscles can...Ch. 41 - Prob. 4FIBCh. 41 - Prob. 4MCCh. 41 - What are the three types of skeletons found in...Ch. 41 - Prob. 5FIBCh. 41 - Prob. 5MCCh. 41 - Compare the structures of the following pairs:...Ch. 41 - Prob. 6FIBCh. 41 - Explain the functions of osteoblasts and...Ch. 41 - Prob. 7FIBCh. 41 - Describe a hinge joint and how it is moved by...
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- When muscle fibers are stimulated so frequently they do not have an opportunity to relax, they are experiencing: a. unfused or incomplete tetanus. b. wave summation. c. fused or complete tetanus. d. twitch.arrow_forwardCompared with skeletal muscle, visceral smooth muscle a. has the same ability to be stretched. b. loses the ability to contract forcefully when stretched. C. maintains about the same tension, even when stretched. d. cannot maintain long, steady contractions. e. can accumulate a substantial oxygen deficitarrow_forwardDuring muscle contraction, the I band a. hides the H zone. b. shortens or narrows. c. overlaps the Z line. d. always remains the same length.arrow_forward
- Compared with skeletal muscle, visceral smooth musclea. has the same ability to be stretched.b. loses the ability to contract forcefully when stretched.c. maintains about the same tension, even when stretched.d. cannot maintain long, steady contractions.e. can accumulate a substantial oxygen deficit.arrow_forwardWhich of the following statements is not characteristic of smooth muscles? a.Myosin phosphatase is required for contraction. b.They are able to conduct graded depolarizations. c.They can enter a latch state. d.They can produce graded contractions in response to graded depolarizations.arrow_forwardTo demonstrate muscle fatigue, a student held an 8 lb dumbbell in her hand and abducted her arm parallel to the floor. After 45 seconds, she has having difficulty holding that position so she rotated her hand 90 degrees. This allowed her to hold the dumbbell in position for an additional 20 seconds. Which of the following is the best explanation for this? A. Different motor units were contracting while others were relaxing. B. Muscles began to contract isotonically rather than isometrically. C. The load was reduced. D. The resistance to contraction was reduced. E. The change in position provided a greater range of motion at the shoulder.arrow_forward
- A. A hypothetical genetic disease causes the body to produce antibodies that compete with acetylcholine for receptors on the motor end plate. Patients with this disease exhibit varying degrees of muscle weakness. If you could administer a drug that inhibits acetylcholinesterase or a drug that blocks acetylcholine, which one would you use to alleviate these symptoms? Briefly explain the effect that each of these two drugs would have on muscle physiology. B. Megan wants to enter a weight-lifting competition and consults you as to what type of muscle fibers she needs todevelop and how she should go about it. What types of workouts would you suggest to her? Briefly explain why.arrow_forwardThe contractile response in skeletal muscle A. produces more work when the muscle contracts isometrically than the muscle contracts isotonically. B. does not last as long as the action potential. C. produces more tension when the muscle contracts isometrically than when the muscle contracts isotonically. D. starts after the action potential is over. E. decreases in magnitude with repeated stimulation.arrow_forwardA bacterial toxin is known to block the release of ACh at the motor end plate of skeletal muscle. Consequently, a. the skeletal muscle contracts with increasing force. b. the skeletal muscle contracts with increasing frequency. c. the ability to stimulate the muscle is impaired. d. other neurotransmitters would stimulate the muscle.arrow_forward
- Mark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Muscle fibers generate more tension if the starting length of their sarcomeres is very short. b. Stimulation by a motor neuron before a muscle fiber has fully relaxed results in a condition called wave summation. c. Muscles that require a great deal of precise control will have large motor units. d. A muscle fiber changes length during isotonic concentric and isotonic eccentric contractionsarrow_forwardThe fast fatigable motor units are used predominantly for which of the following activities? a. The action potentials fired by alpha motor neurons become slower. b. Slow twitch muscle fibers show increased myosin ATPase. c. Fast fatigable motor units are recruited before slow twitch motor units. d. None of the answers. e.All of the answers.arrow_forwardIdentify which muscle fiber types would be recruited for each of the following functions. Explain your answer. a. walking b. standing c. lifting a heavy object and immediately putting it downarrow_forward
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