间脑-端脑-脑神经.ppt

Internal laryngeal nerve Receives laryngeal mucosa sensation Pieces thyrohyoid membrane (Superior laryngeal artery) Pharynx, epiglottis, laryngeal vestibule External laryngeal nerve Cricothyroid 6. Recurrent laryngeal nerve Right Curving backwards below subclavian A Behind subclavian A Lower pole of the thyroid lateral lobe Crossing the inferior thyroid artery Left Curves below aortic arch Behind the ligamentum arteriosum Ascends to the side of the trachea - Ascends in or near a groove between the trachea and oesophagus Enter the larynx behind the cricoid cartilage Inferior laryngeal nerve All laryngeal muscle, except the cricothyroid, laryngeal mucosa Below the vocal folds 7. Cardiac branches Superior branches Deep cardiac plexus Inferior branches Deep cardiac plexus Superficial cardiac plexus 8. Anterior pulmonary branches Posterior pulmonary branches Ant. and post. Pulmonary plexus 9. Oesophageal branches Oesophageal plexus Oesophagus, back of the pericardium 10. Gastric branches Anterior gastric branches (left vagus) Anterosuperior surface of stomach Posterior gastric branches Postero-inferior surface (right vagus) 11. Coeliac branches Posterior vagal trunks 12. Hepatic branches Join the hepatic plexus 13. Renal branches Join the renal plexus XI Accessory nerve (motor) Dorsal nucleus of the vagus Nucleus ambiguus Lateral aspect of the ventral horn, (C1-6) Cranial root Spinal root Nucleus ambiggus Dorsal nucleus of the vagus Cranial root (4-5 fine rootlets) Emerges posterolateral sulcus of the medullar oblongata Below vagus nerve Join spinal root Pass through jugular foramen -Join the vagus nerve -Pharyx and larynx Lateral aspect of the ventral horn, (C1-6) Spinal root Foramen magnum -skull Join the cranial root Exits jugular foramen -Sternocleidomastoid, trapezius XII Hypoglossal nerve Hypoglossal nucleus 10-15 rootlets Emerge in the anteriolateral sulcus Between the pyramid and olive Perforate the hypoglossal canal Descends between internal j