P1 ANATOMY ESOGHAGUS

Question 1

type of epithelium in the oesophagus

Answer 1

Stratified squamous non-keratinized

Question 2

how long is the oesophagus

Answer 2

25 cm

Question 3

at which vertebral level does it begin

Answer 3

C6

Question 4

at which opening of the diaphragm does the oesophagus pass through

Answer 4

T10

Question 5

relation in the cervical part

Answer 5

left common carotid Art. / thyroid gland

Question 6

relations in the thoracic part

Answer 6

arch of aorta / left main bronchus / left atrium

Question 7

muscle that forms upper oesophageal sphincter

Answer 7

cricopharyngeal

Question 8

forming lower oesophageal sphincter

Answer 8

musculature of the diaphragm

Question 9

Naturally constriction points

Answer 9

A: arch of aorta
B: bronchus ledt main stem
C : cricoid cartilage
D: diaphragmatic lumbar
“ also left atrium “

Question 10

Arterial supply for the cervical part

Answer 10

inferior thyroid Art.

Question 11

Arterial supply for thoracic part

Answer 11

Oesophageal Art. branch

Question 12

Oesophageal Art. branch is coming from

Answer 12

Thoracic aorta

Question 13

Abdominal part arterial supply

Answer 13

left gastric Art.

Question 14

left gastric Art. is coming from

Answer 14

Celiac trunk

Question 15

porto-systemic anastomoses between

Answer 15

left gastric vein + azygos vein

Question 16

Azygos vein is considered as

Answer 16

systemic vein

Question 17

Considered as portal vein

Answer 17

left gastric vein

Question 18

what causes hematemesis

Answer 18

portal hypertension + liver cirrhosis

Question 19

innervated by

Answer 19

vagus nerve 10

Question 20

drains first into

Answer 20

post mediastinum LNs

Question 21

from post mediastinum then into

Answer 21

supraclavicular LNs

Question 22

Developed from

Answer 22

foregut

Question 23

septum that separate the pharyngeal/ oesophageal opening from the trachea during development

Answer 23

tracheoesophageal septum