ESOPHAGUS

ESOPHAGUS

esophagus (American English) or oesophagus (British English)

Multiple Choice

Esophagus started at the level of _______ vertebra and ended at the level of 11th thoracic vertebra (T11).

• C1

• C2

• C3

• C6

esophagus passing through the diaphragm at the opening or hole called as esophageal hiatus.

From the lateral view, we can see the location of esophagus is at the posterior of the trachea.

Multiple Choice

Name the opening or hole where the esophagus passing through the diaphragm?

• Esophageal hiatus

• Caval hiatus

• Aortic hiatus

Multiple Choice

TRUE or FALSE

Trachea located at the anterior to the esophagus?

• TRUE

• FALSE

What is "sphincter" and "reflux" mean?

• Sphincter = a circular muscle that normally maintains constriction of a natural body passage or orifice.

• Reflux = abnormal flow back of fluid content from 1 organ to another organ.

Multiple Choice

Upper esophageal sphincter (UES) located between pharynx and esophagus. It function is to prevent ______ from the trachea to enter the esophagus.

• fluid

• food

• air

Multiple Choice

Lower esophageal sphincter (LES) located between esophagus and stomach. It function is to prevent ______ from the stomach to flowing back (reflux) and enter the esophagus.

• air

• gastric content

• enzyme