1 文書を見つけるための辞書。

• involuntary muscle, smooth muscle
• 平滑筋, 不随意筋
• a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)
• 意識的な制御なしに収縮する、胃、腸、膀胱、血管などの（心臓を除く）内臓器官の壁に見られる筋肉