Endoscopy of the gut

Question 1

What is an endoscopy?

Answer 1

A direct visual examination, biopsy sampling and therapeutic treatment of the gastrointestinal tract.

Question 2

What is nasoendoscopy?

Answer 2

Visualisation of the pharynx and larynx

Question 3

What is OGD?

Answer 3

Oesophagogastroduodenoscopy allowing visualisation of the oesophagus, stomach and duodenum.

Question 4

Describe the oesophagus

Answer 4

Muscular tube approxiamtely 25 cm long orginating in the neck at the level of the lower border of the cricoid cartilage to the cardiac orifice of the stomach at the level of the seventh costal ridge.

Question 5

What is the cricopharyngeal sphincter?

Answer 5

Also known as the upper oesophageal sphincter. marks the commencement of the oesophagus.

Question 6

What are the landmarks visible in the oesophagus