ANATOMY & PHYSIOLOGY LL W/CONNECT ACCESS
4th Edition
ISBN: 9781265521363
Author: McKinley
Publisher: MCG
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Chapter 10, Problem 6DYKB
During 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.
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Chapter 10 Solutions
ANATOMY & PHYSIOLOGY LL W/CONNECT ACCESS
Ch. 10.1 - What are the five major functions of skeletal...Ch. 10.1 - Prob. 2WDYLCh. 10.2 - Prob. 3WDYLCh. 10.2 - Draw and label a diagram of a sarcomere.Ch. 10.2 - Prob. 5WDYLCh. 10.2 - Prob. 6WDYLCh. 10.2 - Diagram and label the anatomic structures of a...Ch. 10.2 - Prob. 8WDYLCh. 10.3 - What triggers the binding of synaptic vesicles to...Ch. 10.3 - What two events are linked in the physiologic...
Ch. 10.3 - Prob. 11WDYLCh. 10.3 - Prob. 12WDYLCh. 10.3 - Describe the four processes that repeat in...Ch. 10.3 - What causes the release of the myosin head from...Ch. 10.3 - How do acetylcholinesterase and Ca2+ pumps...Ch. 10.4 - Prob. 16WDYLCh. 10.4 - What are the various means for making ATP...Ch. 10.4 - Prob. 18WDYLCh. 10.5 - Prob. 19WDYLCh. 10.5 - Prob. 20WDYLCh. 10.5 - Prob. 21WDYLCh. 10.6 - What events are occurring in a muscle that produce...Ch. 10.6 - What is recruitment? Explain its importance in the...Ch. 10.6 - Prob. 24WDYLCh. 10.7 - What is the function of skeletal muscle tone?Ch. 10.7 - When you flex your biceps brachii while doing...Ch. 10.7 - Prob. 27WDYLCh. 10.7 - How can muscle fatigue result from changes in each...Ch. 10.8 - Prob. 29WDYLCh. 10.8 - Prob. 30WDYLCh. 10.9 - What are three anatomic or physiologic differences...Ch. 10.10 - Prob. 32WDYLCh. 10.10 - Prob. 33WDYLCh. 10.10 - Prob. 34WDYLCh. 10.10 - What are the steps of smooth muscle contraction?Ch. 10.10 - What unique characteristics of smooth muscle allow...Ch. 10.10 - Prob. 37WDYLCh. 10.10 - Prob. 38WDYLCh. 10.10 - Prob. 39WDYLCh. 10 - Prob. 1DYKBCh. 10 - The physiologic event that takes place at the...Ch. 10 - In a skeletal muscle fiber, Ca2+ is released from...Ch. 10 - The bundle of dense regular connective tissue that...Ch. 10 - In excitation-contraction coupling, the transverse...Ch. 10 - During muscle contraction, the I band a. hides the...Ch. 10 - During a concentric contraction of a muscle fiber,...Ch. 10 - What event causes a troponin-tropomyosin complex...Ch. 10 - In sustained, moderate exercise, skeletal muscle...Ch. 10 - Skeletal muscle and cardiac muscle are similar in...Ch. 10 - Explain the structural relationship between a...Ch. 10 - Prob. 12DYKBCh. 10 - Prob. 13DYKBCh. 10 - Put the following skeletal muscle contraction...Ch. 10 - Explain the various means of providing ATP for...Ch. 10 - Explain why athletes who excel at short sprints...Ch. 10 - Explain why skeletal muscle generates the most...Ch. 10 - Prob. 18DYKBCh. 10 - Describe the response of smooth muscle to...Ch. 10 - Prob. 20DYKBCh. 10 - Prob. 1CALCh. 10 - One of the primary reasons that one individual is...Ch. 10 - Prob. 3CALCh. 10 - Rigor mortis occurs following death because a....Ch. 10 - Prob. 5CALCh. 10 - Prob. 1CSLCh. 10 - Describe the effect of the botulinum toxin, which...Ch. 10 - Smooth muscle is within the urinary bladder wall....
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- To make a muscle contract more strongly,the nervous system can activate more motorunits. This process is calleda. recruitment.b. summation.c. incomplete tetanus.d. twitch.e. concentric contractionarrow_forwardIn an isometric contraction, the muscle develops tension but does not: a. Expend energy.b. Exhibit elasticity.c. Lengthen.d. Conduct electrical current.e. Widenarrow_forwardWhen the length of the muscle stays the same but the force increases during contraction it is referred to as an: A. Isotonic Contraction B. Isometric Contraction C. Isotreppid Contraction D. Isochronal Contractionarrow_forward
- Describe what is happening to the following parts of a sarcomere during muscle contraction. a. H band b. I band c. A band d. Z linesarrow_forwardWhich of the following statements about the microscopic structure of smooth muscle fibers is incorrect? a. smooth muscle cells lack myofibrils, sarcomere, and t-tubules b. smooth muscle cells contain endomysium only c. smooth muscles cells contain caveolae that sequesters calcium ions d. all of the above e. none of the abovearrow_forwardMuscle that has a striped appearance is described as being a. elastic b. nonstriated c. excitable d. striatedarrow_forward
- Smooth muscle cells have , whereasskeletal muscle fibers do not.a. sarcoplasmic reticulumb. tropomyosinc. calmodulind. Z discse. myosin ATPasearrow_forwardDuring a concentric contraction of a skeletal muscle fiber, myofibrils a. lengthen. b. remain the same length. c. increase in diameter. d. shorten.arrow_forwardPut the following skeletal muscle contraction events in the order that they occur: a. The myosin head swivels toward the center of the sarcomere. b. Calcium ions are released from the sarcoplasmic reticulum and bind to troponin. c. An action potential is propagated along the sarcolemma and transverse tubules. d. Myosin binds to actin, forming crossbridges. e. Myosin heads bind ATP molecules and release from actin. f. Tropomyosin molecules are moved off active sites on actin. g. ATPase splits ATP, providing the energy to reset the myosin head.arrow_forward
- Which of the following effects result(s) from aging on the muscular system?a. Muscle mass declines.b. Slow-twitch fibers are affected most by aging.c. Fatigue occurs more quickly.d. Increased muscle tone limits stability.e. The gait lengthens and is slower.arrow_forwardWhen 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_forwardWhen a skeletal muscle fiber undergoes a concentric isotonic contraction,a. M lines remain the same distance apart.b. Z lines move closer to the ends of the A bands.c. A bands become shorter.d. I bands become wider.e. M lines move closer to the end of the A band.arrow_forward
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