Zenker's diveiculum is called as

Ans. is 'd' i.e., Hypopharyngeal diveiculum Hypopharyngeal diveiculum or Zenker's diveiculum or pharyngeal pouchIt is a pulsion diveiculum where pharyngeal musoca herniates through the killian's dehiscence, a weak area between two pas of the inferior constrictor.It is the most common esophageal diveiculum.The diveicula arises posteriorly in the midline of neck. The mouth of the diveicula is in the midline but the sacprojects laterally (usually left laterally )Zenker's diveicula are rarely seen below 30 yrs of age, most patients are over 50.