What is the nerve supply of the angle of the jaw?
(A) Mandibular nerve (B) Maxillary nerve (C) Lesser occipital nerve (D) Greater auricular nerve
(D) Ans: D. Greater auricular nerve(Ref: Gray's 41Ie p407, 413, 40Ie p435)The skin over the angle of mandible is supplied by the greater auricular nerve, which carries branches from anterior ramus of C2 and C3. Branches of Upper Cervical Spinal NervesGreat auricular nerveBranches from anterior rami of 2" & 3rd cervical spinal nervesdegInnervates skin over the angle of mandible, parotid gland & earlobedegLesser occipital nerveBranches from anterior rami of 2" & 3rd cervical spinal nervesdegInnervates scalp behind the eardeg.Greater occipital nerveBranching off the posterior ramus of the 2" cervical spinal nervesdegInnervates scalp of occipital areadeg3rd occipital nerve:Branches off the posterior ramus of 3rd cervical nervedegInnervates scalp in occipital & sub occipital areasdeg.