GIN PBL Anatomy of Esophagus and Duodenum
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Transcript of GIN PBL Anatomy of Esophagus and Duodenum
Anatomy of esophagus and duodenumColin Lee MAHSA MBBSWhat is the esophagus?25 cm long muscular tubeSTART - Lower border of CcEND - Cardiac orifice of stomach 2 Sexy curves 3 constrictions 3 portions - CTA
Lymphatic drainageAbdominal part
left gastric lymph nodes
Thoracic part
Posterior mediastinal nodesthoracic duct
Cervical part
Deep cervical nodesNerve SupplyCervical: recurrent laryngeal nerve & cervical sympathetic trunk Thoracic: vagal trunks & thoracic sympathetic trunk & oesophageal plexus Abdominal: vagal trunks & thoracic sympathetic trunk Esophageal pain mimics cardiac angina due to common nerve supply
Histologically, the esophagus has the following 4 concentric layers:
Mucosal layerSubmucosal layerMuscular layerAdventitial / Serosal layer
Gastroduodenal Junction (Duodenum)
References 1. B Viswanatha, MBBS, MS, DLO; Chief Editor: Thomas R Gest, PhD .Esophagus Anatomy. http://emedicine.medscape.com/article/1948973-overview#aw2aab6b3 (accessed 25 September 2014).2. Vinay Kumar Kapoor, MBBS, MS, FRCSEd, FACS, FACG, FICS, FAMS; Chief Editor: Thomas R Gest, PhD .Duodenal Anatomy. http://emedicine.medscape.com/article/1898874-overview (accessed 25 September 2014).3. B Viswanatha, MBBS, MS, DLO; Chief Editor: Thomas R Gest, PhD .Esophagus Anatomy. http://emedicine.medscape.com/article/1948973-overview#showall (accessed 25 September 2014).Thank You!