Rectum and anal canal (part 2)

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The rectum also has three additional lateral flexures formed by the submucosal transverse folds that protrude into the lumen of the rectum. These submucosal folds are also known as the valves of Houston, and they include the following:

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Gastrointestinal tract (overview)
Oral cavity
Salivary glands
Pharynx
Esophagus
Stomach
Location and relations of stomach
Stomach parts and sphincters
Gastric mucosa
Arterial blood supply of stomach
Venous drainage of stomach
Innervation of stomach
Intestines
Duodenum
Duodenum parts
Duodenum flexure
Arterial blood supply of duodenum
Venous drainage of duodenum
Innervation of duodenum
Jejunum
Ileum
Arterial blood supply of jejunum and ileum
Vasa recta of jejunum
Vasa recta of ileum
Venous drainage of jejunum and ileum
Large intestine
Characteristic features of large intestine
Cecum and vermiform appendix
Colon
Rectum and anal canal (part 1)
Rectum and anal canal (part 2)
Arterial blood supply of large intestine
Venous drainage of large intestine
Innervation of intestines
Omentum

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