Your neck
Achalasia is a disorder of the esophagus.
Esophageal means pertaining to the esophagus.
Esophagus(US) or Oesophagus (Older UK) Definition: The passage between the pharynx and the stomach. http://en.wiktionary.org/wiki/esophagus
A kid friendly definition of the word energy is, the ability to do work.
Yes it can, when there is a narrowing of the esophagus, If the doctor suspect a narrowing of the esophagus, it would be good to get an endoscopy and have the esophagus dilated by the doctor during the endoscopy. Acid re-flux also can affect breathing when it back up into the lungs causing to aspirate.
a kid friendly definition would be two or more people that disagree on something and are not getting along.
changing
competition
The front part of the neck, containing the esophagus, voicebox, hyoid bone, and trachea.
A kid friendly definition would be - The head of the Catholic Church.
A kid friendly definition of disease would be "a very serious sickness a person/people could catch or already have from their parents.
The esophagus is an organ in vertebrates which consists of a muscular tube through which food passes from the pharynx to the stomach.