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