Which combining form refers to the Larynx?

• A. Laryng/o
• B. Rhin/o
• C. Ot/o
• D. Lith/o

Answer: (A)

Combining forms name body parts, and laryng/o designates the larynx, the voice box in the throat that houses the vocal cords and helps protect the airway during swallowing. Because of this direct link to the structure, laryng/o is the correct form to indicate the larynx in medical terms, as seen in words like laryngitis or laryngoscope. The other options point to totally different parts or concepts—rhin/o to the nose, ot/o to the ear, and lith/o to stone—so they fit terms about those things rather than the larynx.