Which Types of Esophageal Diverticula Are Located at the Pharyngoesophageal

question 15

Multiple Choice

Which types of esophageal diverticula are located at the pharyngoesophageal junction at the upper-lateral aspect of the esophagus?
1) Epiphrenic
2) Killian-Jameson
3) Zenker

• A) 1 and 2 only
• B) 1 and 3 only
• C) 2 and 3 only
• D) 1, 2, and 3

---

Definitions:

Deregulation

Reduction or removal of government controls from an industry to allow for a free and efficient marketplace.

Telecommunications Act

Legislation that regulates the telecommunications industry, aiming to foster competition and reduce regulatory barriers.

Cross Ownership

The ownership of multiple types of media outlets, such as TV and radio stations, newspapers, and magazines, by a single person or corporation.

Concentration

The process by which the number of companies producing and distributing a particular commodity decreases, often through mergers and conglomeration.