Digestive tract - close-up cross-section of stomach - labeled

Description

Drawing of the digestive tract within an outline of the top half of a human body. Inset shows a cross section of the stomach.

Alternate Text

Drawing of the digestive tract within an outline of the top half of a human body. Inset shows a cross section of the stomach.

Caption

GERD results when the lower esophageal sphincter—the muscle that acts as a valve between the esophagus and stomach—becomes weak or relaxes when it should not, causing stomach contents to rise up into the esophagus.

Diseases or Conditions

File Size

457 KB | 1689 x 1034

File Type

JPG