Articles > Smooth muscle definition – quiz Smooth muscle definition – quiz Quiz Choose the best answer. 1. Smooth muscles are ... striated voluntary in action spindle-shaped 2. Which of the following does not have a smooth muscle? Heart Intestine Blood vessel 3. Function of a smooth muscle Digests food Locomotion Pumps blood 4. Which of the following is NOT a feature of a smooth muscle cell? Single nucleus Presence of sarcomere Involuntarily controlled 5. Smooth muscles that work as a single unit Smooth muscles in the urinary bladder Arrector pili muscles Internal eye muscles Send Your Results (Optional) Your Name To Email Time is Up!