Practical Anatomy LAB 9 Dr. Firas M. Ghazi Parotid region Objectives By the end of this lab students are expected to be able to 1. Describe the parotid gland and its location 2. List the important structures that pass in, through & out of gland 3. Describe the course of the parotid duct 4. Differentiate between parotid duct and related structures Lab check list Boundaries: Anterior: anterior border of masseter Superior: zygomatic arch Posterior: mastoid process Inferior: line joining the angle of the mandible to the mastoid process. Parotid gland: Apex (below) 1. Cervical branch of the facial nerve. 2. Anterior and posterior divisions of retromandibular vein. Base (Superior surface) 1. Superficial temporal vessels. 2. 2. Auriculotemporal nerve. surfaces 1. Superficial surface. 2. Anteromedial surface. 3. Posteromedial surface. Borders 1. Anterior. 4 of the 5 branches of the facial nerve Parotid duct. 2. Posterior. 3. Medial. Content (superficial to deep) 1. Facial nerve. 2. Retromandibular vein. 3. External carotid artery. Parotid duct Masseter muscle Dentistry students/2nd year Page 1 Practical Anatomy LAB 9 Dr. Firas M. Ghazi Home work The parotid swellings (ex: mump) are very painful, can you explain why? Review Question: Match the letters of the pointed structures with the correct anatomical terms from the list 1. 2. 3. 4. 5. 6. 7. Superficial temporal A. ( ) External carotid artery ( ) Great auricular nerve ( ) auriculotemporal nerve ( ) Parotid gland ( ) A Masseter muscle ( ) Trapezius muscle ( ) B E D C F G Dentistry students/2nd year Page 2