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Exercise 38
Digestive System Anatomy
Functions of the Digestive System
•
•
•
•
Ingest food
Digest food
Absorb nutrients
Eliminate indigestible waste
Digestive
anatomy
overview
Organization of the Digestive organs
Alimentary Canal
 Mouth
 Pharynx
 Esophagus
 Stomach
 Small intestine
 Large intestine
 Anus
Accessory organs
 Teeth
 Tongue
 Salivary glands
 Gall bladder
 Liver
 Pancreas
The Digestive
Process
Ingestion
Propulsion
Mechanical Digestion
Chemical Digestion
Absorption
Defecation
This is your basic alimentary tract structure.
The oral cavity and pharynx
Say “ahhh”…
Salivary glands
The Stomach
Gastroesophageal junction
Esophagus
Stomach
Stratified squamous epithelium
Simple columnar epithelium
Gastric histology
The
peritoneum
Daddy, what does “retroperitoneal” mean?
Location of mesentary:
The lesser omentum
Location of mesentary:
The greater omentum
Histology of the small intestine
Adaptation for absorption
Duodenal mucosa
Goblet cells
Crypts of Lieberkuhn!
Duodenal glands
Villi
You only find us here,
In the duodenum!
Brunner’s (duodenal) glands
Crypts of Lieberkuhn!
Paneth cells
Anatomy of the large intestine
The Colon
Look at all those goblet cells!
Human dental formula:
Baby teeth
Human
dental
formula:
Permanent
teeth
Anatomy
of a Tooth
Pancreas: Acinar cells
The
Liver
The End
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