The esophagus

Question 1

length of oseophagus

Answer 1

25cm

Question 2

parts of oseophagus

Answer 2

1. cervical 2.thoracic 3. abdominal

Question 3

Contrictions of oseophagus

Answer 3

cricopharyngeas, aortic arch, left main bronchus, opening of diaphragm

Question 4

contrictions.. cricopharyngeus how many cm from incisor?

Answer 4

15 cm

Question 5

contrictions.. aortic arch how many cm from incisor?

Answer 5

25cm

Question 6

contrictions.. left main bronchus how many cm from incisor?

Answer 6

27cm

Question 7

contrictions.. opening of diaphragm how many cm from incisor?

Answer 7

40cm

Question 8

contrictions.. 15 cm from incisor?

Answer 8

cricopharyngeus muscle

Question 9

contrictions.. 25 cm from incisor?

Answer 9

aortic arch

Question 10

contrictions.. 27 cm from incisor?

Answer 10

left main bronchus

Question 11

contrictions.. 40 cm from incisor?

Answer 11

opening of diaphragm

Question 12

bifurcation of trachea at?

Answer 12

t4

Question 13

beginning and relations of cervical esophagus

Answer 13

starts at the level of cricoid cartilage c6…. anterior: trachea and recurrent laryngeal n… posterior.. vertebra and ant longitudinal ligament

Question 14

where does cervicle oseophagus lies?

Answer 14

lies in front of prevertebral fascia slighty to the left behind trachea

Question 15

anterior relations of thoracic esophagus

Answer 15

trachea, left main bronchus, pericardium, left atrium, and right pulmonary artery

Question 16

right and left relations of thoracic esophagus

Answer 16

arch and vagus…. left: arch of aorta , left vagus, lung and pleura… right:arch of azygos vein, right vagus, lung and pleura

Question 17

end of thoracic oseophagus

Answer 17

by piercing diaphragm 1 inch to the left of midline opposit body of t10 or 7th left costal cartilage

Question 18

which stuctures passes through the esophygeal opening of diaphragm? normally and pathologically

Answer 18

normally.. esophagus and vagus nerve.. pathologically hiatus hernia and osophageal varices

Question 19

posterior relations of thoracic esophagus

Answer 19

vertebra and ant longitudinal ligament

Question 20

surgical importance of contrictions

Answer 20

they are the sites of foreign body impaction

Question 21

surgical importance of thoracic osophagus

Answer 21

mediastinal relations.. behind pericardial sac so used in transesophygeal echo can assess severity of left atrial enlargement

Question 22

abdominal esophagus beginning

Answer 22

the end of thoracic osophagus.. 1 inch left to midline opposit the body of t10 or 7ths left costal cartilage

Question 23

length of abdominal esophagus

Answer 23

4 to 5 cm

Question 24

end of abdominal esophagus

Answer 24

at the gastro esophygeal junction

Question 25

end of abdominal esophagus

Answer 25

at the gastro esophygeal junction

Question 26

level of gastro esophygeal junction

Answer 26

t10

Question 27

peritoneal covering of abdominal esophagus

Answer 27

only anteriorly

Question 28

blood supply of oseophagus

Answer 28

upper esophagus:inferior thyroid arteries... middle esophageal branches of aorta... lower part esophageal branches of left gastric artery

Question 28

blood supply of oseophagus

Answer 28

upper esophagus:inferior thyroid arteries... middle esophageal branches of aorta... lower part esophageal branches of left gastric artery

Question 29

blood supply of oseophagus

Answer 29

upper esophagus:inferior thyroid arteries... middle esophageal branches of aorta... lower part esophageal branches of left gastric artery

Question 30

blood supply of oseophagus

Answer 30

upper esophagus:inferior thyroid arteries... middle esophageal branches of aorta... lower part esophageal branches of left gastric artery

Question 30

blood supply of oseophagus

Answer 30

upper esophagus:inferior thyroid arteries... middle esophageal branches of aorta... lower part esophageal branches of left gastric artery

Question 31

blood supply of oseophagus

Answer 31

upper esophagus:inferior thyroid arteries... middle esophageal branches of aorta... lower part esophageal branches of left gastric artery