Esophagus And Stomach Flashcards
Esophagus is located at
Slightly to the left midline
Closely apposes the L main bronchus and the pericardium of atrium
Distally, the esophagus lies posterior to the descending aorta to the L midline as it enters the diaphragmstic opening
False, anterior
Functional divisions of esophagus
Upper esophageal sphincter
Esophageal body
Lower esophageal sphsincter
Anatomicall esophagus is divided into
Cervical
Thoracic
And distal
Blood supply of esophagus
UES
Thoracic part
LES
Inferior thyroid A
Aortic esophageal Arteries (terminal branches of bronchial A)
L Gastric A and L phrenic A
Venous drainage of esophagus
Upper 3rd
Middle
Lower
Inferior thyroid veins
Azugos veins
Left gastric vein
Lymphatic drainage
Cervical
thoracic
Abdominal
Supraclaviculae node
Tracheal, trachebronchial, posterior medistinal diaphrsgmstic
Celiac LN
Innervation
Sympathetic trunks
Vagus nerves: para sympathetic
Both join to form esophageal plexus inferior to the roots of the lungs
Acid reflux causes metaplastic change called the
Barrett’s esophagus
Barret’s metalpasia is a change from
Squamous to columnar epithelium
Fiber directions of the muscle of the stomach
Inner oblique
Middle circular
Outer longitudinal
Area above the level of the cardial orifice
Fundus
Anterior relations of the stomach
Abdominal wall
Left costal margin
Diaphragm
Left lobe of liver
Superior relations of the stomach
Left dome of the diaphragm
Posterior relations of the stomach
Lesser sac Pancreas Transverse colon and mesocolon Left kidney/ suprarenal gland Spleen/ splenic artery
