Esophagus

Question 1

Parts of esophagus

Answer 1

✓Cervical
✓Thoracic
✓Abdominal

Question 2

•Pierces the
diaphragm at the
level of

Answer 2

T10

Question 3

•End at the cardiac
end at the level of

Answer 3

T11

Question 4

4 constrictions

Answer 4

Beginning → esophageal sphincter
Arch of aorta
Left main bronchus
Part passing from diaphagna

Question 5

Abdominal Esophagus

Answer 5

Covered by peritoneum
on its front & left side
• No peritoneum on the
posterior side

Question 6

❑Anterior of abdominal esophagus

Answer 6

✓ Left Vagal trunk
✓ Left gastric artery
✓ Left lobe of liver
✓ Esophageal plexus

Question 7

❑Left of abdominal esophagus

Answer 7

Fundus

Question 8

commencement

Question 9

❑Anterior of abdominal esophagus

Answer 9

✓ Left Vagal trunk
✓ Left gastric artery
✓ Left lobe of liver
✓ Esophageal plexus

Question 10

❑Posterior of abdominal esophagus

Answer 10

✓ Left inf
phrenic
artery
✓ Left crus of
diaphragm
✓ Aorta
✓ Post vagal
trunk

Question 11

What prevents reflux?

Answer 11

1. Right crus encircles
   around the esophagus
2. Obliquity of junction
3. Mucosal folds act as
   valvular mechanism
4. Phrenico-esophageal lig

Question 12

Arteries

Answer 12

Cervical esophagus:
Right & Left superior & inferior
thyroid arteries
Thoracic esophagus:
Up to tracheal bifurcation R & L
inf thyroid artery
Direct supply from aorta
(tracheo-bronchial tree)
Abdominal esophagus
Branches off L gastric artery and
branches of splenic artery
posteriorly

Question 13

Lympathics

Answer 13

❑1/3 upper;
• Deep cervical LN
❑1/3 middle;
• Sup & post mediastinal
LN
❑1/3 lower;
• Left gastric LN
• Celiac LN

Question 14

Nerves

Answer 14

❑ Cervical part;
✓ Recurrent laryngeal nerve
✓ Cervical symp trunk
❑ Thoracal part;
✓ Thoracic symp trunk
✓ Greater splanchnic nerve
✓ Vagal nerve
❑ Abdominal part;
✓ Vagal trunk
✓ Greater & lesser splanchnic
nerves
✓ Plexus around the left
gastric & inf phrenic arteries