Multiple choice Which of the following are characteristic features of smooth muscle fibres? Spindle-shaped, unbranched, unstriated, uninucleated and involuntary Spindle-shaped, unbranched, unstriated, multinucleated and involuntary Cylindrical, unbranched, unstriated, multinucleated and voluntary Cylindrical, branched, striated, multinucleated and voluntary Reveal answer Fill a bubble to check yourself A Correct answer Explanation null