Which of these characteristics are true about the muscles of the stomach?
A
Cylindrical, syncytial, unbranched and voluntary
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B
Cylindrical, striped, nucleated and voluntary
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C
Cylindrical, striped, branched and involuntary
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D
Spindle, unbranched, uninucleated and involuntary
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Solution
The correct option is A Spindle, unbranched, uninucleated and involuntary Smooth muscle fibers are nonstriated, unbranched, spindle-shaped and have 1 nucleus per cell. Constriction of smooth muscle occurs involuntarily . Contractions of smooth muscle move food through the digestive tracts and push blood through the blood vessels.