NEET PG DENTAL EXAM

Detailed explanation-1: -Unlike the muscles of facial expression that are innervated by the facial nerve (CN VII), the muscles of mastication are innervated by motor branches of the mandibular division of the trigeminal nerve (CNV3), while the main arterial supply is derived from branches of the maxillary artery.

Detailed explanation-2: -The masseter is primarily responsible for the elevation of the mandible and some protraction of the mandible. It receives its motor innervation from the mandibular division of the trigeminal nerve.

Detailed explanation-3: -There are four muscles responsible for the movement of the jaw during mastication which are the temporalis, the masseter, the lateral pterygoid and the medial pterygoid.