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