ACTIVE-LEARNING WRKBK FOR HUM ANAT & PHY
ACTIVE-LEARNING WRKBK FOR HUM ANAT & PHY
2nd Edition
ISBN: 9780135643303
Author: AMERMAN
Publisher: PEARSON
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Chapter 10, Problem 1CYR

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a. A property of all muscle cells is elasticity, which means that the tissue is able to stretch.

b. The common function of all types of muscle tissue is to generate tension.

c. The plasma membrane of a muscle cell is called the sarcoplasmic reticulum.

d. Muscle cells are contractile, conductive, distensible cells.

Expert Solution & Answer
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Summary Introduction

To review:

Whether the following statements are true or false.

a. A property of all muscle cells is elasticity, which means that the tissue is able to stretch.

b. The common function of all types of muscle tissues is to generate tension.

c. The plasma membrane of a muscle cell is called the sarcoplasmic reticulum.

d. Muscle cells are contractile, conductive, and distensible cells.

Introduction:

The structural levels of organizations of the body are the cells, tissues, organs, organ systems, and the organism. The cellis made up of different organelles and is considered astructural and functional unit of life. A group of similar cells forms tissues, which perform similar functions. The four main types of tissues are epithelial, connective, muscle, and nervous tissue. Each movement inside the body, as well as locomotion from one place to other, involves several muscle cells.

Explanation of Solution

a. The statement, “A property of all muscle cells is elasticity, which means that the tissue is able to stretch”, is false. The three types of muscle tissues are skeletal muscle, cardiac muscle, and smooth muscle. The cells of all muscles possess the ability to stretch to a certain extent without getting damaged, which is called distensibility, not elasticity. Elasticity is the ability to return to their original shape after being stretched. The correct statement is, “A property of all muscle cells is distensibility, which means that the tissue is able to stretch.”

b. The statement, “The common function of all types of muscle tissues is to generate tension”, is true. All the muscle cells have the property of generating muscle tension due to common properties, such as contractility, excitability, and conductivity. This force is required for muscle contraction, stabilization of joints, posture maintenance, generation of heat, and regulation of the flow of materials through hollow organs.

c. The statement, “The plasma membrane of a muscle cell is called the sarcoplasmic reticulum”, is false because the sarcoplasmic reticulum is the term used for modified smooth endoplasmic reticulum of muscle cells. The plasma membrane of the muscle cell is known as sarcolemma. It is composed of a phospholipid bilayer, and several integral and peripheral proteins are present in it. The correct statement is, “The plasma membrane of a muscle cell is called the sarcolemma.”

d. The statement, “Muscle cells are contractile, conductive, and distensible cells”, is true because all the muscle cells have the ability to contract (contractility) andrespond to different stimuli (excitability). The electrical changes in the plasma membrane are rapidly conducted along sarcolemma (conductivity) and also, the muscle cells can stretch (distensibility).

Conclusion

Thus, it can be concluded that all the muscle cells have common properties, namely contractility, distensibility, elasticity, conductivity, and excitability, which enable them to produce tension. The statements (b) and (d) are true according to the reasons provided and the statements(a) and (c) are false.

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Chapter 10 Solutions

ACTIVE-LEARNING WRKBK FOR HUM ANAT & PHY

Ch. 10.2 - Prob. 6QCCh. 10.2 - Describe the structures of thin filaments, thick...Ch. 10.2 - Prob. 8QCCh. 10.3 - What is the resting membrane potential?Ch. 10.3 - Prob. 2QCCh. 10.3 - 3. How do the electrochemical gradients for...Ch. 10.3 - What two factors generate the resting membrane...Ch. 10.3 - What is an action potential?Ch. 10.3 - What happens during the two phases of an action...Ch. 10.4 - Prob. 1QCCh. 10.4 - Prob. 2QCCh. 10.4 - 3. How does excitation from a neuron trigger...Ch. 10.4 - How are excitation and contraction coupled?Ch. 10.4 - What are the steps of the crossbridge cycle?Ch. 10.4 - Prob. 6QCCh. 10.5 - What are the two immediate energy sources for...Ch. 10.5 - How long can these immediate energy sources fuel...Ch. 10.5 - Prob. 3QCCh. 10.5 - Prob. 4QCCh. 10.5 - Prob. 5QCCh. 10.5 - Prob. 6QCCh. 10.5 - Prob. 7QCCh. 10.6 - What is a twitch contraction?Ch. 10.6 - What are the phases of a twitch contraction?Ch. 10.6 - How does the timing of a stimulus impact the...Ch. 10.6 - 4. How do fused and unfused tetanus differ? Ch. 10.6 - 5. At what length will a sarcomere be able to...Ch. 10.6 - How do type I and type II muscle fibers differ?Ch. 10.7 - Prob. 1QCCh. 10.7 - 2. Explain the process of recruitment. Ch. 10.7 - Prob. 3QCCh. 10.7 - 4. How do isotonic concentric, isotonic...Ch. 10.8 - Prob. 1QCCh. 10.8 - Prob. 2QCCh. 10.8 - Prob. 3QCCh. 10.8 - What conditions does excess postexercise oxygen...Ch. 10 - Mark the following statements as true or false. If...Ch. 10 - How does a skeletal muscle fiber differ...Ch. 10 - Thick filaments are composed of the protein a....Ch. 10 - Prob. 4CYRCh. 10 - Prob. 5CYRCh. 10 - Mark the following statements as true or false. If...Ch. 10 - Prob. 7CYRCh. 10 - 8. Order the following events of excitation and...Ch. 10 - 9. Which of the following statements accurately...Ch. 10 - 10. A muscle fiber relaxes when: a. the...Ch. 10 - Which of the following energy sources would...Ch. 10 - 12. Mark the following statements as true or...Ch. 10 - Prob. 13CYRCh. 10 - 14. Muscle tone is: a. the result of voluntary...Ch. 10 - Prob. 15CYRCh. 10 - Which of the following is not likely to result...Ch. 10 - Which of the following factors is/are responsible...Ch. 10 - 18. What is thought to cause excess postexercise...Ch. 10 - Prob. 19CYRCh. 10 - 20. Which of the following best describes...Ch. 10 - Mark the following statements as true for smooth...Ch. 10 - Prob. 1CYUCh. 10 - Prob. 2CYUCh. 10 - 3. The drug neostigmine blocks the activity of...Ch. 10 - Explain why cardiac muscle cells and some smooth...Ch. 10 - Prob. 1AYKACh. 10 - Prob. 2AYKACh. 10 - Prob. 3AYKACh. 10 - Prob. 4AYKACh. 10 - Prob. 5AYKBCh. 10 - Prob. 6AYKB
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