A patient suffered a trauma to the face and was brought to the ER. On recovery, it was found that the patient was unable to chew his food. On examination, his jaw detes to right side. The nerve that has been injured exits skull through which foramen?
All the given features indicate that Mandibular nerve is involved hence foramen ovale is correct. A: Foramen lacerum B: Foramen juglare C: Foramen ovale D: Foramen spinosum E: Foramen magnum FORAMINA AND STRUCTURES PASSSING THROUGH : Foramen Structures passing through foramen Anterior Cranial Fossa Foramen cecum Emissary veins to nasal cavity Olfactory foramen in cribriform plate Olfactory nerves Middle cranial fossa Optic canal optic nerve ; ophathalmic aery Superior orbital fissure Oculomotor nerve ; trochlear nerve ; ophthalmic division of the nerve l ophthalmic veins Foramen rotundum Maxillary division of the trigeminal nerve Foramen ovale Mandibular division of the trigeminal nerve ; lesser petrosal nerve Foramen spinosum Middle meningeal aery Hiatus for the greater petrosal nerve Greater petrosal nerve Hiatus for the lesser petrosal nerve Lesser petrosal nerve Posterior Cranial Fossa Foramen magnum End of brainstem/beginning of spinal cord; veebral aeries; spinal roots of the accessory nerve; meninges Internal acoustic meatus Facial nerve ; vestibulocochlear nerve ; labyrinthine aery Jugular foramen Glossopharyngeal nerve ; vagus nerve ; accessory nerve ; inferior petrosal sinus, sigmoid sinus (forming internal jugular vein) Hypoglossal canal Hypoglossal nerve ; meningeal branch of the ascending pharyngeal aery Condylar canal Emissary vein
A
B
C
D
Integrated QBank