Multiple Choice
Which structure is responsible for the striated appearance of skeletal muscle tissue?
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4. Tissues & Histology
Introduction to Muscle Tissue
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Which of the following is a characteristic feature of smooth muscle tissue?
A
Cells are spindle-shaped and lack striations
B
Cells are multinucleated and striated
C
Cells contract voluntarily
D
Cells are branched and connected by intercalated discs
Verified step by step guidance1
Understand the types of muscle tissue: Smooth muscle, skeletal muscle, and cardiac muscle. Each has distinct structural and functional characteristics.
Recall that smooth muscle tissue is found in walls of hollow organs like the intestines, blood vessels, and bladder. It is responsible for involuntary movements such as peristalsis and vasoconstriction.
Identify the structural features of smooth muscle cells: They are spindle-shaped (elongated with tapered ends) and lack striations, which distinguishes them from skeletal and cardiac muscle cells.
Compare smooth muscle cells to other muscle types: Skeletal muscle cells are multinucleated and striated, cardiac muscle cells are branched and connected by intercalated discs, and smooth muscle cells lack these features.
Conclude that the correct characteristic feature of smooth muscle tissue is: 'Cells are spindle-shaped and lack striations.' This matches the structural and functional description of smooth muscle tissue.
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