
Concept explainers
Introduction:
Muscles are an essential part of the body as they help the body in movement and generation of energy. The system involving the muscles is called the muscular system. It allows the movement of the muscle by contraction or relaxation. The three types of the muscles are the skeletal muscles, the smooth muscle and the cardiac muscles.

Answer to Problem 1A
Correct answer: As the skeletal muscles contain striated cells with multiple nuclei. Therefore, option (c) is correct.
Explanation of Solution
Reason for the correct statement:
The skeletal muscle cells consist of the striated cells with multiple nuclei.
Option (c) is given as “skeletal”.
As “the sample containing striated cells with multiple nuclei in each cell is the sample of the skeletal cell”, it is the right answer.
Hence, option (c) is correct.
Reasons for the incorrect statements:
Option (a) is given as “cardiac”.
The cardiac muscles are composed of the uninucleated cells and are tubular and striated. So, it is a wrong answer.
Option (b) is given as “smooth”.
Smooth muscle cells are uninucleated cells with spindle shaped striated fibers. So, it is a wrong answer
Option (d) is given as “both b and c are correct”.
Both b and c are not correct because b is smooth muscle cells and they have uninucleated cells. So, it is a wrong answer
Hence, options (a), (b), and (d) are incorrect.
The sample containing striated cells with multiple nuclei in each cell of the skeletal cell.
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Chapter 13 Solutions
Human Biology
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