A Backward Flow of the Contents of the Stomach to the Esophagus

question 243

Multiple Choice

A backward flow of the contents of the stomach to the esophagus, caused by an inability of the LES to contract normally, is:

• A) GERD.
• B) PUD.
• C) IBS.
• D) IBD.

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Definitions:

Lipids

A group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins, and other related compounds, serving as energy storage and structural components of cell membranes.

Protobionts

Early protocell structures that are believed to have preceded true living cells, consisting of a membrane-like structure enclosing biopolymers and other organic molecules.

Genetic Material

The molecules inside cells that carry genetic information, primarily DNA, and in some viruses, RNA.

Hydrophilic Heads

Refers to the water-attracting parts of molecules (such as those in phospholipids) that are oriented towards the water phases in cell membranes or emulsions.