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!
