Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 2RC
The ability to recover from injuries in older people decreases because
(a) the number of myosatellite cells decreases with age.
(b) myosatellite cells become smaller in size.
(c) the amount of fibrous tissue in the muscle increases.
(d) both a and c.
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Chapter 9 Solutions
Human Anatomy (8th Edition) - Standalone book
Ch. 9 - 1. Active sites on actin become available for...Ch. 9 - Prob. 3RFTCh. 9 - Prob. 4RFTCh. 9 - 4. Another name for a muscle that is a prime mover...Ch. 9 - Prob. 1RFTCh. 9 - Prob. 6RFTCh. 9 - 7. The theory that explains muscle contraction is...Ch. 9 - Prob. 8RFTCh. 9 - Label the illustrations to the right as...Ch. 9 - Prob. 1RC
Ch. 9 - 2. The ability to recover from injuries in older...Ch. 9 - Prob. 3RCCh. 9 - Prob. 4RCCh. 9 - Prob. 5RCCh. 9 - A motor unit from a skeletal muscle contains 1500...Ch. 9 - 7. What is the role of the zone of overlap in...Ch. 9 - Several anatomy students take up weight lifting...Ch. 9 - Prob. 2CT
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- (a) What are myofibrils? (b) Which components of the sarcoplasm separate the myofibrils in a fiber from one another?arrow_forwardWhich of the following is found on the outside of skeletal muscles? a). Myofibrilsb). Sheathc). Bundlesd). Sarcomerearrow_forwardA muscle fiber is the same thing as a: a) myofibril. b) myocyte. c) myofilament. d) fascicle.arrow_forward
- (a) Describe the roles of ATP in the sliding filament mechanism of skeletal muscle contraction. (b) Describe the basic sequence of events that occurs as an action potential arrives at the neuromuscular junction and is transmitted to the muscle cell for contraction.arrow_forwardEven though calcium is removed from troponin and tropomyosin, please describe in detail what else needs to happen to allow our muscle fibers to relax and not stay contracted?arrow_forwardWhat happens to sarcomeres when actin and myosin filaments in a muscle fiber interact during the contraction phase? A) sarcomeres usually fatigue B) sarcomeres usually get shorter C) sarcomeres usually get longer D) sarcomeres stay the samearrow_forward
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