Anatomy Of Oesophagus

1. ESOPHAGUS
V.S.RASHMI PRIYEM
ULTRA’S BEST Dental Science College

2. ESOPHAGUS
 25 cm Long
Muscular Tube
 Connects Pharynx
With The Stomach.
 The Esophagus Is
Kept Collapsed
Anteroposteriorly
Between Trachea
And Vertebral
Column.
 Expansion Occurs
Only When Bolus Of
Food Passes
Through It.
Rashmi Priyem Saravanan

3. EXTENT
 Begins As A Continuation Of Pharynx At
The Lower Border Of Cricoid Cartilage
Opposite The Lower Border Of C6
Vertebra
 Passes Downwards In Front Of The
Vertebral Column Behind Trachea
 Traverses Superior And Posterior
Mediastina Of Thorax
 Passes Through The Esophageal
Opening Of The Diaphragm
 Ends At The Cardiac Orifice Of The
Stomach In The Abdomen About 2.5 cm
To The Left Of The Median Plane
Rashmi Priyem Saravanan

4. Rashmi Priyem Saravanan

5. ESOPHAGUS
 The Esophagus Is Divided Into Three
Parts: Cervical, Thoracic, And
Abdominal.
 The Pharyngoesophageal Junction
Is The Narrowest Part Of The
Digestive Tube Except That Of The
Vermiform Appendix.
Rashmi Priyem Saravanan

6. Rashmi Priyem Saravanan

7. CERVICAL PART OF THE
ESOPHAGUS
 Extends From The Lower Border Of
Cricoid Cartilage To The Superior
Border Of Manubrium Sterni.
 Begins In The Midline But Inclines
Slightly To The Left As It Descends.
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8. Anteriorly, It Is Related To:
(A) Trachea
(B) Recurrent Laryngeal Nerve
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9. Posteriorly, It Is Related To:
(A) Prevertebral Fascia
(B) Longus Colli Muscles
(C) Vertebral Column
Rashmi Priyem Saravanan

10. On Each Side, It Is Related
To:
(A) Lobe Of The Thyroid Gland
(B) Common Carotid Artery
(C) Thoracic Duct On The Left Side
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11. ARTERIAL SUPPLY
 The Cervical Part Of The Esophagus
Is Supplied By The Inferior Thyroid
Arteries
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12. VENOUS DRAINAGE
 The Veins From This Part Drain Into
Inferior Thyroid Veins And Left
Brachiocephalic Vein
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13. LYMPHATIC DRAINAGE
 The Lymph Vessels From The
Cervical Part Of Esophagus Drain Into
Pretracheal And Deep Cervical
Lymph Nodes
Rashmi Priyem Saravanan

14. CLINICAL CORRELATIONS
 Commonest Site Of The Cancer
Esophagus - Middle One-third Of
Esophagus
 Most Common Site Of The
Adenocarcinoma Of Esophagus -
Lower One-third
Rashmi Priyem Saravanan