Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Chapter 9, Problem 2RFT
Summary Introduction
Introduction:
Blood vessels and nerves providing the muscle fibers are found inside the connective tissue of the endomysium, perimysium, and epimysium. Skeletal muscles are also commonly known as voluntary muscles. This is so because their contractions can be controlled consciously.
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Chapter 9 Solutions
Human Anatomy (9th Edition)
Ch. 9 - 1. Active sites on actin become available for...Ch. 9 - Prob. 2RFTCh. 9 - Prob. 3RFTCh. 9 - 4. Another name for a muscle that is a prime mover...Ch. 9 - Prob. 5RFTCh. 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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- If a muscle cell had very short T-tubules, how much tension would the muscle fiber create, relative to a normal muscle fiber? Assume sarcoplasmic reticulum can still react to activity at the neuromuscular junction. a)Less tension would be created. b) No difference in tension creation. c) More tension would be created. d) No tension would be created.arrow_forwardDo you think flexibility exercises work to make tendons or ligaments more flexible? Why would flexibility be so important to musculoskeletal health?arrow_forwardunder a microscope, some skeletal muscles appear white and some look red. What type of muscle appears white? What type of muscle appears red? What accounts for this difference?arrow_forward
- How does a tendon differ from a ligament?arrow_forwardYou are training athletes for the 100-meter dash. They need muscles specialized for speed and strength, not endurance. What muscle characteristics would your training regimen aim to develop? How would you alter it to train a long-distance swimmer?arrow_forwardWhat is a motor unit? Why does a rapid series of muscle twitches yield a stronger overall contraction than a single twitch?arrow_forward
- Figure 13.22 To what structures in a skeletal muscle are the endoneurium, perineurium, and epineurium comparable? Figure 13.22 Close-Up of Nerve Trunk Zoom in on this slide of a nerve trunk to examine the endoneurium, perineurium, and epineurium in greater detail (tissue source: simian). LM × 1600. (Micrograph provided by the Regents of University of Michigan Medical School © 2012)arrow_forwardWhich of the following is the smallest: muscle fiber, thick filament, or myofibril? Which is largest?arrow_forwardDo both skeletal and cardiac muscle have a striated appearance? Explain?arrow_forward
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