The lesser petrosal nerve is a branch of the glossopharyngeal nerve that plays a vital role in the transmission of sensory and motor signals to and from various body parts. There are various synonyms of the lesser petrosal nerve, which are used interchangeably in the medical field. Some of these synonyms include the pars petrosa nervi glossopharyngei, small petrosal nerve, and nervus petrosus minor. These synonyms are useful in medical literature, research, and discussions, making communication regarding the nerve's function more effective. Understanding the various synonyms of the lesser petrosal nerve is crucial in diagnosing and treating patients with related disorders or diseases.