Esophagus

Anatomy Of Esophagus

• It is the continuation downwards of pharynx starts at the level of C6 vertebra in the lower part of the neck.

• It passes downwards through the superior and posterior mediastinum of thorax.

• It pierces the diaphragm at the level of T10 vertebra enters the abdominal cavity where it is continued as stomach.

• The esophagus shows four constrictions 

         --- At the beginning

·                                  Where it is crossed by arch of aorta.

·                                   Where it is crossed by left bronchus.

·                                   While it is passing through the diaphragm.

• Blood supply : esophageal arteries.

• Nerve supply : vagus nerve.

Applied Anatomy :

     Any problem with pharynx or esophagus, the person will have difficulty in swallowing. This condition is known as dysphasia.

Related Posts :