The document summarizes key details about the esophagus and stomach. The esophagus is described as a 25cm long muscular tube extending from the lower border of the cricoid cartilage to the cardiac end of the stomach. It has two side to side curvatures and is crossed by the aortic arch and left bronchus. The stomach is a muscular bag located in the epigastric, umbilical and left hypochondriac regions that has a capacity of 1.5-2L. It receives its arterial blood supply from the celiac artery and branches of the left gastric artery.

2. OESOPHAGUS
Narrow muscular tube
Extent – lower border of cricoid cartilage to cardiac
end of stomach
25cm
Flattened AntPostly
Pharyngo-oesophageal jn

5. Curvatures
Generally vertical
2 side to side curvatures(to left)
AP curvatures correspond to that of cervicothoracic
spine

6. Constrictions
At beginning (15cm)
Crossed by aortic arch(22.5cm)
Left bonchus(27.5cm)
On piercing diaphragm(37.5cm)

8. BLOOD SUPPLY
Inf thyroid arteries ---------------
Eosophageal branches
of aorta-----------------------------
Oesophageal branches of
Left gastric artery
----------------------

9. CONTD…
 VENOUS
• upper- brachiocephalic
 middle- azygos
 lower- left gastic
 LYMPHATIC
 cervical  deep cervical
 Thoracic  post mediastinal
 Abdominal  left gastric

10. Nerve supply
Parasymp
upper half - recurrent laryngeal
lower half -oesophageal plexus by 2 vagi
• Symp
upper – middle cervical ganglion
lower – upper 4 thoracic ganglia

11. STOMACH
Muscular bag that forms the widest & most
distensible part of digestive tube
Oesophagus to duodenum
Location – epigastric,
umbilical & left
hypochondriac
• 25cm long
• Capacity – 1.5 to 2L
• Parts

12. CONTD…
• Lesser curvature- Concave,
right border,Lesser omentum
• Greater curvature-Convex,
left border,greater omentum,
gastrosplenic&
gastrophrenic ligament
• 2 surfaces

13. RELATIONS

14. ARTERIAL SUPPLY
Venous drainage – portal, superior
mesenteric & splenic

15. CONTD…
Left gastric, panc-
splenic
coeliac&
hepatic
rt gastroepi
pyloric

16. Nerve supply
Symp – T6 to T10
Parasymp – from vagi through oesophageal plexus &
gastric nerves