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Introduction to the Digestive System Lyrics by Human Physiology

Human Physiology

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William Beaumont and St. Martin
FunctionsThe digestive, or gastrointestinal (GI), system is comprised of a long, epithelium-lined tube that is open to the outside world. It serves four primary functions:
Absorption
Digestion
Motility
Secretion
AnatomyOral Cavity: first stages of digestion:
-chewing
-saliva by salivary glands (sublingual, submandibular, parotid)
esophagus: food=chyme
stomach to anus: gut
stomach: fundus, body, antrum,(rugae), pyloric valve (regulates rate of movement of food into the SI)
small intestine: duodenum (.25 m), jejunum and ileum (2.6 m)
-enzymes, exocrine secretions by accesory glandular organs (pancreas and liver) that enter in the duodenum, sphincter of oddi
-nearly all nutriends and secreted fluids are absorbed
large intesting
1.5 l of chyme per day
colon: watery chime covnereted to semisolid feces
rectum, defecation reflex
anus
external anal sphincter
Gastrointestinal WallWall has four layers
Mucosa: inner lining facing the lumen. Made of

About “Introduction to the Digestive System” by Human Physiology

Read the complete lyrics to "Introduction to the Digestive System" by Human Physiology from the album "Human Physiology". On Lyrks you can follow along with the full text, explore the artist's discography, and discover related songs. The track is often categorized under Non-Music.

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"Introduction to the Digestive System" is credited to Human Physiology. Songwriting credits may include additional writers listed on the release; check the credits section on this page for linked collaborators.

"Introduction to the Digestive System" appears on "Human Physiology".

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