• Lung/Intrapulmonary Passages 

    Krause, William J., II, 1942- (William J. Krause, 2008-10)
    Histology blog entry for October 19, 2008 about the lung and intrapulmonary passages.
  • Respiratory system I 

    Krause, William J., II, 1942- (2013-03)
    The first of two videos introducing the respiratory system.
  • Trachea and Extrapulmonary Bronchi 

    Krause, William J., II, 1942- (William J. Krause, 2008-10)
    Histology blog entry for October 17, 2008 about the trachea and extrapulmonary bronchi.