HUMAN ANATOMY
6th Edition
ISBN: 9781260210262
Author: SALADIN
Publisher: RENT MCG
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Chapter 10.3, Problem 12BYGO
Summary Introduction
To analyze:
The organelles that can be found to be more abundant and larger in cardiac muscles than in skeletal muscles and functional significance of that organelles.
Introduction:
Cardiac muscle cells or cardiomyocytes are the muscle cells that conjure the heart muscle. Cardiac muscles are striated, relatively short and stumpy. Thus, they are known as cardiomyocytes rather than fibers. Cardiomyocytes are very rich in glycogen and myoglobin and it has large mitochondria that fill about 25% of the cell. Cardiac muscle cells are very well adapted to aerobic respiration and resistant to fatigue.
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Chapter 10 Solutions
HUMAN ANATOMY
Ch. 10.1 - What general function of muscular tissue...Ch. 10.1 - Prob. 2BYGOCh. 10.1 - State five special properties of muscular tissue...Ch. 10.1 - What are the basic structural differences between...Ch. 10.2 - During muscle contraction, which band(s) of the...Ch. 10.2 - What role does the sarcoplasmic reticulum play in...Ch. 10.2 - What proteins compose the thick and thin...Ch. 10.2 - Why does skeletal muscle have a banded (striated)...Ch. 10.2 - Where does acetylcholine come from and what does...Ch. 10.2 - How do myosin and actin work together to make a...
Ch. 10.2 - Prob. 10BYGOCh. 10.2 - Prob. 11BYGOCh. 10.3 - Prob. 12BYGOCh. 10.3 - Prob. 13BYGOCh. 10.3 - Prob. 14BYGOCh. 10.3 - How are unitary and muliunit smooth muscle...Ch. 10.4 - Prob. 16BYGOCh. 10.4 - What is the principal difference between the way...Ch. 10.4 - Prob. 18BYGOCh. 10.4 - Prob. 19BYGOCh. 10.4 - Prob. 20BYGOCh. 10 - The scope of myology and of the term muscular...Ch. 10 - Prob. 10.1.2AYLOCh. 10 - Five physiological properties that muscle cells...Ch. 10 - Differences between skeletal, cardiac, and smooth...Ch. 10 - The internal ultrastructure of a skeletal muscle...Ch. 10 - Prob. 10.2.2AYLOCh. 10 - Prob. 10.2.3AYLOCh. 10 - The relationship between myofilaments, myofibrils,...Ch. 10 - Prob. 10.2.5AYLOCh. 10 - Prob. 10.2.6AYLOCh. 10 - Prob. 10.2.7AYLOCh. 10 - Prob. 10.2.8AYLOCh. 10 - Prob. 10.2.9AYLOCh. 10 - Prob. 10.2.10AYLOCh. 10 - The structure of a neuromuscular junction and the...Ch. 10 - Prob. 10.2.12AYLOCh. 10 - The components of a motor unit; what is meant by...Ch. 10 - Prob. 10.2.14AYLOCh. 10 - Prob. 10.2.15AYLOCh. 10 - Prob. 10.2.16AYLOCh. 10 - Prob. 10.2.17AYLOCh. 10 - Prob. 10.2.18AYLOCh. 10 - Prob. 10.2.19AYLOCh. 10 - Prob. 10.2.20AYLOCh. 10 - Prob. 10.2.21AYLOCh. 10 - The term for cardiac muscle cells, their...Ch. 10 - Prob. 10.3.2AYLOCh. 10 - Prob. 10.3.3AYLOCh. 10 - Prob. 10.3.4AYLOCh. 10 - Prob. 10.3.5AYLOCh. 10 - Prob. 10.3.6AYLOCh. 10 - Prob. 10.4.1AYLOCh. 10 - Prob. 10.4.2AYLOCh. 10 - Prob. 10.4.3AYLOCh. 10 - The mode of inheritance and pathology of muscular...Ch. 10 - Prob. 10.4.5AYLOCh. 10 - Prob. 10.4.6AYLOCh. 10 - A bundle of action and myosin myofilaments within...Ch. 10 - Muscle cells must have all of the following...Ch. 10 - A feature found in skeletal and cardiac muscle but...Ch. 10 - A feature found in smooth muscle but lacking from...Ch. 10 - Which of the following muscle proteins is not...Ch. 10 - Prob. 6TYRCh. 10 - Prob. 7TYRCh. 10 - Unitary smooth muscle cells can stimulate each...Ch. 10 - The calcium needed for skeletal muscle contraction...Ch. 10 - Prob. 10TYRCh. 10 - Prob. 11TYRCh. 10 - Prob. 12TYRCh. 10 - Prob. 13TYRCh. 10 - Prob. 14TYRCh. 10 - Prob. 15TYRCh. 10 - Prob. 16TYRCh. 10 - Prob. 17TYRCh. 10 - To activate the contraction of skeletal muscle,...Ch. 10 - Prob. 19TYRCh. 10 - A wave of contraction passing along the esophagus...Ch. 10 - Prob. 1BYMVCh. 10 - Prob. 2BYMVCh. 10 - Prob. 3BYMVCh. 10 - State a meaning of each word element and give a...Ch. 10 - Prob. 5BYMVCh. 10 - State a meaning of each word element and give a...Ch. 10 - Prob. 7BYMVCh. 10 - Prob. 8BYMVCh. 10 - Prob. 9BYMVCh. 10 - Prob. 10BYMVCh. 10 - Prob. 1WWWTSCh. 10 - Prob. 2WWWTSCh. 10 - Briefly explain why each of the following...Ch. 10 - Prob. 4WWWTSCh. 10 - Prob. 5WWWTSCh. 10 - Prob. 6WWWTSCh. 10 - Prob. 7WWWTSCh. 10 - Briefly explain why each of the following...Ch. 10 - Prob. 9WWWTSCh. 10 - Prob. 10WWWTSCh. 10 - Prob. 1TYCCh. 10 - Prob. 2TYCCh. 10 - Prob. 3TYCCh. 10 - Prob. 4TYCCh. 10 - Prob. 5TYC
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- Why is the plateau phase important in cardiac muscle cells?arrow_forwardIn cardiac muscle, which ion serves both to depolarize the cells and as the essential link to myocyte contraction (the troponin/tropomyosin part)? a-Na+ b-Ca+ c-Ca2+ d-Cl-arrow_forwardWhat are the major factors that determine the contraction of skeletal muscle? What is the role of Calcium. Identify the similarities and differences comparing skeletal muscle contraction and relaxation to cardiac muscle.arrow_forward
- What is the micro anatomical arrangement of a skeletal muscle fiber cell?arrow_forwardCan cardiac muscle exhibit (normally or under experimental conditions) summation or complete tetanus as does skeletal muscle? Why not? (highlight the main answer)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_forward
- Contractile bundles occur in nonmuscle cells; these structures are less organized than the sarcomeres of muscle cells. What is the purpose of nonmuscle contractile bundles?arrow_forwardCardiac and skeletal muscle are both “striated” types of muscle and yet they have very distinct functional characteristics. a) Skeletal muscle functions as discrete motor units and the cardiac muscle works as a functional syncytium. Define the italicized terms in the previous sentence, explain their importance, and describe the cellular features that underlie these functional differences. b) Cardiac muscle exhibits automaticity, while excitation of skeletal muscle is neurogenic. Define the italicized terms and provide a brief explanation of mechanisms underlying each.arrow_forwardWhat are three anatomic or physiologic differences between skeletal muscle and cardiac muscle?arrow_forward
- Can cardiac muscle exhibit (normally or under experimental conditions) summation or complete tetanus as does skeletal muscle? Why not? (highlight the main concepts)arrow_forwardwhy would skeletal muscle cell need so many nuclei?arrow_forward2) List the names of the two major Contractile Proteins. Which of the proteins is "bound" and "anchored" to the cell membrane? The other protein essentially "floats" within the ctyoplasm; which contractile protein "floats". 3) Contractions in a muscle cell (or fiber) is always stimulated and intiated by a rapid rise in intrallcellular calcium. Write a brief paragraph or two explaining the differences in the sources of Contraction- causing-Calcium within the 3 different muscle-cell types.arrow_forward
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