The document summarizes the anatomy and features of the esophagus. It notes that the esophagus is 25 cm long and connects the pharynx to the stomach. It passes downwards in front of the vertebral column and behind the trachea. The esophagus is divided into three parts: cervical, thoracic, and abdominal. The cervical part extends from the lower border of the cricoid cartilage to the superior border of the manubrium sterni. It is anterior to the trachea and recurrent laryngeal nerve, and posterior to the prevertebral fascia and longus colli muscles.

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.
Rashmi Priyem Saravanan

8. Anteriorly, It Is Related To:
(A) Trachea
(B) Recurrent Laryngeal Nerve
Rashmi Priyem Saravanan

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
Rashmi Priyem Saravanan

11. ARTERIAL SUPPLY
 The Cervical Part Of The Esophagus
Is Supplied By The Inferior Thyroid
Arteries
Rashmi Priyem Saravanan

12. VENOUS DRAINAGE
 The Veins From This Part Drain Into
Inferior Thyroid Veins And Left
Brachiocephalic Vein
Rashmi Priyem Saravanan

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