Stomach
Videos
The stomach is a muscular, hollow organ in the upper gastrointestinal tract of humans and many other animals, including several invertebrates. The Ancient Greek name for the stomach is gaster which is
Diagram showing parts of the stomach
Diagram showing gastric pits (13) gastric glands (12) lamina propria (10) epithelium (11)
An endoscopy of a normal stomach of a healthy 65-year-old woman
Endoscopic image of a fundic gland polyp
Duodenum
Videos
The duodenum is the first section of the small intestine in most vertebrates, including mammals, reptiles, and birds. In mammals, it may be the principal site for iron absorption. The duodenum precede
Diagram of the human duodenum with major parts labelled
Dog duodenum 100X
Duodenum with amyloid deposition in lamina propria
Micrograph showing giardiasis on a duodenal biopsy (H&E stain)