Jackson has a pcd (primary cilia dyskinesia) where his cilia have defects that affect their motility. how is this related to jackson's respiratory symptoms?

The PCD or primary cilia dyskinesia is a rare disorder, which influences tiny hair-like compositions, which surrounds the airways. These compositions are known as cilia. PCD is an inherited disorder, that is, the disorder is transferred from the parents to children via genes.  

The motile cilia are found on the lining cells of the trachea. The cilia move in combination in a coordinated wave, assisting in pushing the contaminated fluids and mucus out of the respiratory tract. When the cilia exhibit motility issues, these secretions are not cleared and respiratory infections become the common outcome.  

i thinking chemical change

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.