Anatomy and Cell Biology 2221 Lecture Notes - Lecture 5: Arachnoid Mater, Superior Sagittal Sinus, External Jugular Vein
21 Jan 2017
School
Department
Professor
Document Summary
Meninges and blood supply to head and neck. You go to the dentist for a filling in your lower jaw. The dentist targets the anesthetic to an area in your cheek beside your lower molars. You notice that the anterior part of the tongue on the injected side is numb and that taste is also affected on that side so you can"t enjoy your macchiato on the way home. You keep biting your tongue and vow to never go through this again! The dentist numbed the lingual nerve generally sensory of tongue. Chorda tympani is frozen as well because it runs with lingual nerve and the patients looses sense of taste. Buccal nerve is probably numb as well because you keep biting your cheek. Describe the layers of the meninges and flow of cerebrospinal fluid (csf) Dura mater: periosteal layer- layer under the bone, meningeal layer- closer to the bone, these layers are usually fused together.
