Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 29, Problem 13RQ
What functional features of molluscan smooth muscle and insect fibrillar muscle set them apart from typical vertebrate muscle?
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During evolution, skeletal muscle became adapted to functional de-mands ranging from sudden, withdrawal movements of a startled worm, to the sustained contractions required to maintain mammalian posture, to supporting a long, fast chase across an African savanna. What are some of the fiber types in vertebrate muscle that evolved to support these kinds of activities?
Why would skeletal muscle be unsuitable for the wall of the urinary bladder? Explain how this illustrates the complementarity of form and function at a cellular and molecular level.
List the three types of muscle found in vertebrates, and describewhere they are found in the body.
Chapter 29 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 29 - The arthropod exoskeleton is the most complex of...Ch. 29 - Distinguish between epidermis and dermis in...Ch. 29 - Prob. 3RQCh. 29 - As naked apes humans lack the protective...Ch. 29 - Prob. 5RQCh. 29 - Prob. 6RQCh. 29 - What is the difference between endochondral and...Ch. 29 - Discuss the role of osteoclasts, osteoblasts,...Ch. 29 - The laws of scaling tell us that doubling the...Ch. 29 - Prob. 10RQ
Ch. 29 - Prob. 11RQCh. 29 - Prob. 12RQCh. 29 - What functional features of molluscan smooth...Ch. 29 - Prob. 14RQCh. 29 - While the sarcoplasmic reticulum of muscle was...Ch. 29 - The filaments of skeletal muscle are moved by free...Ch. 29 - During evolution, skeletal muscle became adapted...Ch. 29 - A weight lifter decides to go jogging with a...
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- create a brief guide to the structure and function of vertebrate muscle. Points that you need to consider include cell shape; cell size; number of nuclei per cell; position of the nuclei; presence or absence of striations; presence or absence of branching; and presence or absence of intercalated discs.arrow_forwardWhile the sarcoplasmic reticulum of muscle was first described by nineteenth-century microscopists, its true significance was not ap-preciated until its intricate structure was revealed much later by the electron microscope. What could you tell a nineteenth-century microscopist to enlighten him or her about the structure of the sarcoplasmic reticulum and its role in the coupling of excitation and contraction?arrow_forwardSkeletal muscle has several distinct fiber types. Type I is used primarily for aerobic activity, whereas type IIb is specialized for short, intense bursts of activity. How could you distinguish between these types of muscle fiber if you viewed them with an electron microscope?arrow_forward
- Skeletal muscle has several distinct fiber types. Type I is used primarily for aerobic activity, whereas type II b is specialized for short, intense bursts of activity. How could you distinguish between these types of muscle fiber if you viewed them with an electron microscope?arrow_forwardWhich of the following are aspects of the structure of skeletal muscle? Select all that apply. --They are cylindrical cells called muscle fibers that have multiple nuclei. --Skeletal muscle has more mitochondria than other types of muscle cells. --The muscle fibers parallel one another and have a striated appearance. --Cells are branched or unbranched with single nuclei. --Each fiber contains stacks of many units of contraction and protein filaments.arrow_forwardHow does the structure of the microfilaments allow for linear contraction of a whole muscle cells?arrow_forward
- Describe the structural features of smooth musclecells and contrast them with skeletal musclefibers.arrow_forwardWhat evidence supports a sliding filament-crossbridge mechanism of contraction in smooth muscle?arrow_forwardWhat are the most notable differences between striated, smooth, and cardiac muscle? What are the main types of neurons in the mammalian brain and what is their main function?arrow_forward
- How do smooth muscle cells differ from skeletal musclefibers in their electrical properties?arrow_forwardWhat is the function of the sarcoplasmic reticulum in muscle cell contraction?arrow_forwarddescribe the structure of vertebrate skeletal muscle, from a whole muscle through individual muscle cells and subcellular structures down to the proteins involved in muscle contraction?arrow_forward
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