Which attachment correctly describes the insertion of the tensor tympani muscle?
- A Handle of the malleus ✓
- B Neck of the stapes
- C Long process of the incus
- D Tympanic surface of the stapedial footplate
Correct answer: A. Handle of the malleus
Explanation
The tensor tympani arises from the cartilage of the auditory tube and the greater wing of the sphenoid, and its tendon crosses the middle ear to insert on the handle of the malleus near its root, drawing the tympanic membrane medially to dampen sound. The neck of the stapes is the insertion of the stapedius muscle, supplied by the facial nerve, whereas the tensor tympani is supplied by the mandibular division of the trigeminal nerve.
Reference: Gray's Anatomy, 42nd ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.