A 39-year-old man sustains a skull base fracture involving the foramen ovale after blunt head trauma. Vital signs show BP 128/82 mmHg, HR 88/min, RR 16/min, temp 37.2°C, SpO2 98% on room air. He reports decreased sensation over the lower face and ipsilateral cheek, with difficulty chewing tough foods. Jaw opening deviates toward the injured side. CT confirms fracture through foramen ovale. Corneal reflex remains intact bilaterally. Which nerve was most likely damaged?
- A)Hypoglossal nerve
- B)Mandibular division of trigeminal nerveGABARITO
- C)Facial nerve
- D)Maxillary division of trigeminal nerve
- E)Ophthalmic division of trigeminal nerve
Explicação
The mandibular division of the trigeminal nerve exits via foramen ovale and supplies the muscles of mastication as well as sensory fibers to the lower face. Weak pterygoids cause jaw deviation toward the side of the lesion. Ver explicação completa e trilha adaptativa →