1. The medial pterygoid muscle (i) is innervated by the mandibular nerve. (ii) is easily palpable. (iii) is active during lateral excursion of the mandible. (iv) has an attachment to the temporomandibular articular disc. 2. Muscles that close the jaw include the (i) temporalis. (ii) buccinator. (iii) medial pterygoid. (iv) lateral pterygoid. 3. The neck of the mandible (i) is covered by the masseter muscle. (ii) gives attachment to the lateral ligament of the temporomandibular joint. (iii) gives attachment to the sphenomandibular ligament. (iv) is covered by the parotid gland.