NEET PG DENTAL EXAM

Detailed explanation-1: -A 45-year-old woman is suffering from numbness over the tip of her nose. Which of the following nerves is most likely to be damaged? The skin over the tip of the nose is innervated by external nasal branch of the nasociliary branch of the ophthalmic division of the trigeminal nerve.

Detailed explanation-2: -The mandibular nerve is the only branch of the trigeminal nerve with a motor component (V3). This branch supplies motor innervation to the facial muscles involved in mastication, which include the masseter, temporalis muscle, and lateral and medial pterygoids.

Detailed explanation-3: -All the nerves of the sacral plexus arise from three nerve roots EXCEPT the sciatic nerve, which has five nerve roots. The superior gluteal nerveand the nerve to quadratus femoris/inferior gemellus share the same nerve roots (L4, L5 and S1).

Detailed explanation-4: -The axillary nerve starts in your neck and extends to your shoulder. It causes movement and sensation in your shoulder and the back of your upper arm. Injuries to this nerve can affect your ability to rotate your arm or lift it.