Esophageal surgery

2021-02-10 12:00 AM

In terms of anatomy, the oesophagus is divided into 3 segments: the neck is about 3cm long; the bust is about 20 cm long and the belly about 2 cm long.

The oesophagus is the food tube from the pharynx to the stomach, a flat anterior and posterior cylindrical shape, about 25cm long, with the upper part connecting the pharynx to the level of the cervical vertebra 6, below the gastric opening at the centre of the heart, at the level of the thoracic vertebrae 10.

Figure. Stomach

1.Trachea 2. Aorta 3 & 4. Oesophagus 5. Diaphragm

In terms of anatomy, the oesophagus is divided into 3 segments: the neck is about 3cm long; the bust is about 20 cm long and the belly about 2 cm long.

The oesophagus is relatively mobile, attached to its surrounding organs with loose structures. In the neck, the oesophagus is located behind the trachea, down to the posterior mediastinum, located behind the heart, before the thoracic aorta; through the diaphragm into the abdomen, connected to the stomach.

The oesophagus has three narrow places:

The junction with the pharynx, level of the ring cartilage

Horizontal level of the aortic and left main bronchus.

Centrifugal hole. 

The oesophagus is made up of the following layers:

The mucous layer is the stratum corneum.

Submucosa: contains mucous secretory glands.

The mechanical layer consists of the inner ring and the outer vertical layer. The oesophagal muscle layer consists of two types: striated muscle in the upper third and smooth muscle in the lower 2/3.

The outer layer is the loosely connected organizational layer in the oesophagus, the neck and thorax, and the peritoneum in the abdomen oesophagus.