Anatomy Of ESOphagus

Question 1

Define esophagus

Answer 1

Is a collapsible muscular tube that conveys food

from pharynx to stomach

Question 2

Esophagus Extends from the————-
to——————
Esophagus

Answer 2

lower border of cricoid cartilage (C6)
To
gastro-esophageal junction

Question 3

Esophagus Passes through

Answer 3

neck, thorax (enters the superior
mediastinum and then the posterior mediastinum), and
abdomen

Question 4

Esophagus Lies between the——- anteriorly and the ———posteriorly

Answer 4

trachea

vertebral
column

Question 5

Esophagus Pierces the diaphragm through

Answer 5

opening called the

esophageal hiatus

Question 6

Esophagus ends in the

Answer 6

superior portion of

the stomach

Question 7

Food passes through the esophagus rapidly because of

Answer 7

the peristaltic action of its musculature, aided by but
not dependent on gravity (one can still swallow if
inverted).

Question 8

In the neck- esophagus is related to-

Anterior

Answer 8

trachea, thyroid,

recurrent laryngeal nerves

Question 9

In the neck- esophagus is related to-

On each side:

Answer 9

thyroid lobes

Question 10

In the neck- esophagus is related to

Left side:

Answer 10

thoracic duct

Question 11

Thoracic esophagus passes through the ————in

the right crus of diaphragm at—- level (to the left of median plane) and becomes the abdominal part of the esophagus

Answer 11

esophageal hiatus ,T10

Question 12

Esophagus - Thoracic

Anterior relationship

Answer 12

Trachea, 
right pulmonary artery, 
pericardium, 
left atrium, and
left bronchus

Question 13

Esophagus - Thoracic

Posterior relationship

Answer 13

Vertebral column,
thoracic duct,
azygos vein,
thoracic aorta

Question 14

Esophagus Is attached to the margins of the esophageal hiatus in the diaphragm
by

Answer 14

phrenicoesophageal ligament

Question 15

phrenicoesophageal ligament is an

Answer 15

extension of inferior diaphragmatic fascia.

Question 16

phrenicoesophageal ligament connects

Answer 16

the esophagus flexibly to the diaphragm;

Question 17

phrenicoesophageal ligament Limits?

while permitting?

Answer 17

upward movement of the esophagus

some movement during swallowing and respiration.(independent movement of the diaphragm and
esophagus during respiration and swallowing.)

Question 18

Awareness of Natural constrictions

is important why?

Answer 18

when passing instruments through esophagus

when viewing radiographs of patients who are experiencing dysphagia (difficulty in swallowing).

Question 19

Constrictions are the common sites of

Answer 19

cancer

Question 20

Natural constrictions

Are

Answer 20

Cervical constriction
Thoracic (broncho-aortic) constriction
Diaphragmatic constriction

Question 21

Cervical constriction:

caused by

Answer 21

cricopharyngeus muscle;

Question 22

Cervical constriction:

referred to clinically as the

Answer 22

upper esophageal sphincter.

Question 23

Cervical constriction located

Answer 23

at its beginning at the pharyngoesophageal junction, approximately 15 cm from the incisor teeth;

Question 24

Thoracic (broncho-aortic) constriction:

Is a ——— constriction

Answer 24

compound

Question 25

Thoracic (broncho-aortic) constriction:

a compound constriction where it is first crossed by?
Then?

Answer 25

1-arch of the aorta, 22.5 cm from the incisor teeth
2-is crossed by left main bronchus, 27.5 9 inch
cm from the incisor teeth

Question 26

Diaphragmatic constriction:

where it passes through the

Answer 26

esophageal hiatus of the

diaphragm, approximately 40 cm from the incisor teeth.

Question 27

Abdominal Esophagus
——— shaped ,

Is about 40 cm from the incisor teeth in adult.

Answer 27

Trumpet

Question 28

Abdominal Esophagus

Is slightly broader at the——- than at the diaphragmatic aperture.

Answer 28

cardiac orifice

Question 29

Abdominal Esophagus

Lies to the left of the midline behind ———and enters
abdomen through———-(formed by the two diaphragmatic
crura) at T10

Answer 29

left 7th costal cartilage

esophageal hiatus

Question 30

Abdominal Esophagus

Runs obliquely to the left and slightly posteriorly, andends at
————at—— (continuous with cardiac orifice of
stomach).

Answer 30

gastroesophageal junction T11

Question 31

Abdominal Esophagus

Lies posterior to

Answer 31

left lobe of the liver

Question 32

Abdominal Esophagus

Lies ant to

Answer 32

left crus, left inferior

phrenic vessels and left greater and lesser splanchnic nerves