Cervical Vestibular Evoked Myogenic Potential (cVEMP) assesses the function of which vestibular end organ?
- A Utricle
- B Posterior semicircular canal
- C Saccule ✓
- D Lateral semicircular canal
Correct answer: C. Saccule
Explanation
The cervical VEMP (cVEMP) is a sound-evoked sacculocollic reflex — it assesses the saccule and inferior vestibular nerve. Loud clicks or tone bursts activate saccular hair cells, and the response is recorded from the ipsilateral sternocleidomastoid muscle. The ocular VEMP (oVEMP) assesses the utricle and superior vestibular nerve via the utriculo-ocular reflex, recorded from the contralateral inferior oblique muscle.
Reference: Dhingra Diseases of Ear, Nose and Throat, 7th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.