ANATOMY AND PHYSIOLOGY ONLINE MATERIALS,
ANATOMY AND PHYSIOLOGY ONLINE MATERIALS,
4th Edition
ISBN: 9781265761493
Author: McKinley
Publisher: MCG
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Chapter 10, Problem 1DYKB
Summary Introduction

Introduction :

Skeletal muscle is also called voluntary muscle. These muscles help in the movement of the body parts. Skeletal muscles are presently connected with the skeleton by tendons. A skeletal muscle fiber is present as long thin fibers which are called skeletal muscle fibers. Their main function is to perform daily activities and movements and maintain posture and balance.

Expert Solution & Answer
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Answer to Problem 1DYKB

Correct answer :

The correct answer is option (d) skeletal muscle fiber.

Explanation of Solution

Explanation/justification for the correct answer :

Option (d) skeletal muscle fiber. The skeletal muscle is composed of numerous small muscle fibers, these muscle fibers are long and cylindrical and together form an organ that is skeletal muscle. Now, this muscle fiber is surrounded by a connective tissue called the endomysium. So, the correct answer is option (d).

Explanation for incorrect answer :

Option (a) myofibril. Myofibrils are bundles of different myofilaments. These myofibrils are present as the compact of several thin and thick myofilaments. They are not surrounded by endomysium. So, this is an incorrect option.

Option (b) fascicle. The fascicle is the part of the skeletal muscle that contains many muscle fibers together. It is a small cylinder bundle. The fascicle is surrounded by the perimysium, not by the endomysium. So, this is an incorrect answer.

Option (c) myofilament. Myofilaments are the protein filaments present in the muscle cells. The proteins are actin, myosin, and titin. There are two types of them, thick and thin, the thick myofilaments are surrounded by the thin myofilaments, not by the endomysium. So, this is an incorrect option.

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Chapter 10 Solutions

ANATOMY AND PHYSIOLOGY ONLINE MATERIALS,

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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