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Zygomaticus minor inserts more medially than z.major All elevate mouth + same innervation3 THINGS PIERCE THIS MUSCLE : 1. Parotid gland 2. Molar glands of the cheek 3. Buccal branch (Mandibular nerve)ccddbbRetraction of mandible moves jaw posteriorlyProtrusion helps open the jaw Unilateral action = side to side movement of jawMassester is on top of medial pterygoid, it attaches onto the lateral surface of the ramus!Also called stenson duct ● ECA gives rise to the posterior auricular artery in the parotid gland, then later divides into maxillary a and superficial temporal a. Which nerve provides parasympathetic innervation to it? Glossopharyngeal nerve Superficial temporal + posterior auricular = retromandibular veinAlso called stenson duct ● ECA gives rise to the posterior auricular artery in the parotid gland, then later divides into maxillary a and superficial temporal a. Which nerve provides parasympathetic innervation to it? Glossopharyngeal nerve Superficial temporal + posterior auricular = retromandibular veinccdd- Filiform = filaments, sensation, no taste buds - Fungiforms = mushrooms, taste buds, spread across anterior tongue - Foliate = foliage, short vertical folds on the lateral tongue - Circumvallate = massive ones at the back, raised edges● Intrinsic tongue muscles, inferior longitudinal,superior longitudinal, transverse, vertical ● Extrinsic tongue muscles : genioglossus, hyoglossu, styloglossus, palatoglossus NOT HIGH YIELD ● Sulcus terminalis - v shaped groove separating ant 2/3rds from posterior ⅓, contains the circumvallate papillae ● Foramen caecum - at midline of tongue, embryological remnant of the where the thyroid gland began to develop, as it descends it remains connected to the tongue by the thyroglossal duct, this duct usually disappears as thyroid reaches its final position is the neck. If the thyroglossal duct doesn’t fully disappear it can lead to thyroglossal duct cysts. ● Thyroglossal duct undergoes obliteration gradually replaced by fibrous tissue which is later resorbed by the surrounding tissues.● Intrinsic tongue muscles, inferior longitudinal,superior longitudinal, transverse, vertical ● Extrinsic tongue muscles : genioglossus, hyoglossu, styloglossus, palatoglossus NOT HIGH YIELD ● Sulcus terminalis - v shaped groove separating ant 2/3rds from posterior ⅓, contains the circumvallate papillae ● Foramen caecum - at midline of tongue, embryological remnant of the where the thyroid gland began to develop, as it descends it remains connected to the tongue by the thyroglossal duct, this duct usually disappears as thyroid reaches its final position is the neck. If the thyroglossal duct doesn’t fully disappear it can lead to thyroglossal duct cysts. ● Thyroglossal duct undergoes obliteration gradually replaced by fibrous tissue which is later resorbed by the surrounding tissues.