Synonyms: bronchus non-striated muscle involuntary muscle of bronchus smooth muscle of bronchi involuntary muscle of bronchial trunk smooth muscle of bronchial trunk involuntary muscle of bronchi smooth muscle tissue of bronchi bronchial trunk smooth muscle bronchi non-striated muscle bronchial trunk non-striated muscle bronchial trunk involuntary muscle bronchial trunk smooth muscle tissue non-striated muscle of bronchus smooth muscle tissue of bronchus non-striated muscle of bronchi smooth muscle tissue of bronchial trunk non-striated muscle of bronchial trunk bronchi smooth muscle tissue bronchus smooth muscle tissue smooth muscle of bronchus bronchi smooth muscle bronchi involuntary muscle bronchus involuntary muscle