matter ejected from lungs is called
sputum. mucous secretion from the lungs, bronchi, and trachea that is ejected through the mouth, in contrast to saliva, which is the secretion of the salivary glands.Called also expectoration. induced sputum a sputum specimen produced for diagnostic tests by aerosol administration of a hypertonic saline solution.ucous secretion from the lungs, bronchi and trachea which is ejected through the mouth by humans but not so in animals and it is assumed that it is swallowed. sputum cup. a smallâ1 inch diameterâcup on a long handle for the collection of sputum from the pharynx of a large animal.