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 8RFT
Summary Introduction
Introduction:
Skeletal muscles consist of cells that are multinucleated. At the time of development, the group of embryonic cells known as myoblasts comes together in order to form single skeletal muscle fibers.
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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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- In a general sense, how do skeletal muscles produce movement?arrow_forwardA muscle whose fascicles are arranged at an angle to a central longitudinal tendon has this arrangement: (a) circular, (b) longitudinal, (c) parallel, (d) pennate, (e) convergent.arrow_forwardIntercalated discs and pacemaker cells are characteristic of (a) smooth muscle tissue. (b) cardiac muscle tissue. (c) skeletal muscle tissue. (d) a, b, and c are correct.arrow_forward
- Which fiber type would be the most useful in the leg muscles of a long-distance runner? (a) fast glycolytic, (b) slow glycolytic, (c) fast oxidative.arrow_forwardThe muscle tissue that is striated is (a) skeletal muscle, (b) cardiac muscle, (c) smooth muscle, (d) cardiac and skeletal muscle, (e) all three types of muscle tissue.arrow_forwardWhich of the following statements about smooth muscle is false? (a) Smooth muscle cells are called fibers. (b) Most smooth muscle cells, like cardiac muscle cells, are joined by gap junctions. (c) Smooth muscle cells have a single, centrally located nucleus. (d) Contraction of smooth muscle is stimulated exclusively by involuntary nerves. (e) Smooth muscle tissue found in the wall of hollow organs is arranged in sheets.arrow_forward
- 16) when a skeletal muscle contracts, it usually moves the bone at one end much more than the bone at its other end. The attachment of the muscle to the less moveable bone is called its a) insertion b) ligament c) origin d) flexorarrow_forwardThe bundle of dense regular connective tissue that attaches a skeletal muscle to bone is called a(n) a. tendon. b. ligament. c. endomysium. d. fascicle.arrow_forwardWhich of the following is found on the outside of skeletal muscles? a). Myofibrilsb). Sheathc). Bundlesd). Sarcomerearrow_forward
- What is the difference between a ligament and a tendon?arrow_forwardA muscle fiber is the same thing as a: a) myofibril. b) myocyte. c) myofilament. d) fascicle.arrow_forwardIf 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_forward
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