Preposition: of

• mouse: A suspension containing 0, 0.1 or 0.5 mg of carbon nanotubes was introduced into the trachea of the mice.

Possessives

• patient: Aspiration into the trachea often occurs and this xray shows contrast in the patient's trachea.

Converse of object

• intubate: When the patient has lost consciousness give a muscle relaxant and intubate the trachea.

• enter: The larynx is raised, closing the glottis, which is then covered by the epiglottis, preventing food entering the trachea.

• call: Oxygen is transported through the body tiny tubes called trachea.