Esophagus

Question 1

10 inches/25 cm long

Straight muscular tube that joins the pharynx to the stomach

Propels swallowed to stomach

Continuous above with the laryngeal part of the pharynx opposite the C6

Deeply placed BEHIND the LEFT lobe of LIVER

Pierces the diaphragm slightly to the left of the midline and after a short course of about 0.5 inch/1.25 cm enters the stomach on its right side

Answer 1

ESOPHAGUS

Question 2

3 anatomic and physiologic constrictions

Answer 2

Upper/Pharyngoesophageal
Middle/Thoracic
Inferior/Diaphragmatic

Question 3

Where the pharynx joins the upper end/beginning of esophagus caused by CRICOPHARYNGEUS muscle

Answer 3

Upper/Pharyngoesophageal

Question 4

Where the aortic arch and left main bronchus cross its anterior surface

Answer 4

Middle/Thoracic

Question 5

Where the esophagus passes through the diaphragm at the ESOPHAGEAL HIATUS

Answer 5

Inferior/Diaphragmatic

Question 6

Arterial Supply and Venous drainage of the Upper 3rd of esophagus

Answer 6

subclavian artery – INFERIOR THYROID a

INFERIOR THYROID v

DEEP CERVICAL

Question 7

Arterial Supply and Venous drainage of the Middle 3rd of esophagus

Answer 7

DESCENDING THORACIC AORTA

AZYGOUS VEIN

MEDIASTINAL

Question 8

Arterial Supply and Venous drainage of the Lower 3rd of esophagus

Answer 8

abdominal aorta – celiac trunk – LEFT GASTRIC ARTERY

LEFT GASTRIC VEIN

CELIAC