Anatomy - Digestive System
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1. Gastrointestinal Alimentary canal;
Tract (GI) The muscular digestive tube that winds through the body, extending from the
mouth to the anus.
2. Organs of Mouth
the Gastrointesti- Pharynx
nal Tract Esophagus
Stomach
Small Intestine
Large Intestine
3. Food Processing Ingestion
Activities Propulsion and Peristalsis
Digestion (mechanical and chemical)
Absorption
Defecation
4. Digestive System The major organ system that breaks down food into nutrients (building blocks)
that the body's cells can use
5. Ingestion The taking of food into the mouth.
6. Propulsion The movement of food through the alimentary canal. It includes swallowing, whis
is initiated voluntarily, and peristalsis, an involuntary process.
7. Peristalsis The major means of propulsion throughout the alimentary canal; it involves alter-
nate waves of contraction and relaxation of musculature in the organ walls.
8. Mechanical Di- Physically prepares food for chemical digestion by enzymes by breaking it into
gestion smaller pieces.
9. Chemical diges-
tion
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, Anatomy - Digestive System
Study online at https://quizlet.com/_jpovuo
A series of steps in which complex food molecules (carbohydrates, proteins, and
lipids) are broken down to their chemical building blocks (simple sugars amino
acids, and fatty acids and glycerol).
10. Absorption The transport of digested end products from the lumen of the alimentary canal into
the blood and lymphatic capillaries located in the wall of the canal.
11. Defecation The elimination of indigestible substances from the body as feces.
12. Accessory Diges- Salivary Glands
tive Organs Teeth
Tongue
Gallbladder
Liver
Pancreas
13. Length of GI tract 30 feet
14. Tissue Layers of Mucosa
Walls of the GI Submucosa
Tract Muscularis Externa
Serosa
15. Mucosa The inner most layer of the gastrointestinal tract wall.
16. Submucosa A layer of connective tissue containing major blood and lymphatic vessels and
nerve fibers that stimulate the digestive tract.
17. Muscularis Exter- Consists of two layers of smooth muscle, an inner circular layers and an outter
na longitudinal layer along the digestive tract.
Responsible for peristalsis and segmentation.
Consists of skeletal muscle in the mouth and upper sophagus.
18. Serosa
2/9
Study online at https://quizlet.com/_jpovuo
1. Gastrointestinal Alimentary canal;
Tract (GI) The muscular digestive tube that winds through the body, extending from the
mouth to the anus.
2. Organs of Mouth
the Gastrointesti- Pharynx
nal Tract Esophagus
Stomach
Small Intestine
Large Intestine
3. Food Processing Ingestion
Activities Propulsion and Peristalsis
Digestion (mechanical and chemical)
Absorption
Defecation
4. Digestive System The major organ system that breaks down food into nutrients (building blocks)
that the body's cells can use
5. Ingestion The taking of food into the mouth.
6. Propulsion The movement of food through the alimentary canal. It includes swallowing, whis
is initiated voluntarily, and peristalsis, an involuntary process.
7. Peristalsis The major means of propulsion throughout the alimentary canal; it involves alter-
nate waves of contraction and relaxation of musculature in the organ walls.
8. Mechanical Di- Physically prepares food for chemical digestion by enzymes by breaking it into
gestion smaller pieces.
9. Chemical diges-
tion
1/9
, Anatomy - Digestive System
Study online at https://quizlet.com/_jpovuo
A series of steps in which complex food molecules (carbohydrates, proteins, and
lipids) are broken down to their chemical building blocks (simple sugars amino
acids, and fatty acids and glycerol).
10. Absorption The transport of digested end products from the lumen of the alimentary canal into
the blood and lymphatic capillaries located in the wall of the canal.
11. Defecation The elimination of indigestible substances from the body as feces.
12. Accessory Diges- Salivary Glands
tive Organs Teeth
Tongue
Gallbladder
Liver
Pancreas
13. Length of GI tract 30 feet
14. Tissue Layers of Mucosa
Walls of the GI Submucosa
Tract Muscularis Externa
Serosa
15. Mucosa The inner most layer of the gastrointestinal tract wall.
16. Submucosa A layer of connective tissue containing major blood and lymphatic vessels and
nerve fibers that stimulate the digestive tract.
17. Muscularis Exter- Consists of two layers of smooth muscle, an inner circular layers and an outter
na longitudinal layer along the digestive tract.
Responsible for peristalsis and segmentation.
Consists of skeletal muscle in the mouth and upper sophagus.
18. Serosa
2/9
