Differentiate between the various digestive enzymes including amylase, lipase,
trypsin, pepsin, carboxypeptidase, and nuclease
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Small Intestine
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Majority of digestion and absorption occurs in the small intestine
large intestine function
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1. absorbing water and electrolytes
2. producing and absorbing vitamins
3. forming and propelling stool
4.bacteria forming Vitamin K convert proteins into amino
acids
Salivary Glands
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lie outside the mouth and empty their contents into ducts
which deliver saliva into the oral cavity
Digestive Function- Stages
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Ingestion
Digestion
Absorption
Compaction
Defecation
Describe the route of food through the primary GI tract
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mouth--> esophagus -->stomach-->small intestine-->large intestine
Differentiate between peristalsis, segmentation, and haustral churning
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Peristalsis= in the stomach, churns swallowed food, mixing it with gastric
juices.
Segmentation= mainly small intestine, localized contractions of the GI tract
circular muscle isolating small sections of the intestine, moving contents
back and forth while subdividing, breaking up, and mixing the contents.
Slowly and segmenting, haustral churning= in the colon ensures chyme is
mixed, facilitating the absorption of water, mineral salts, and vitamins.
Esophagus and Swallowing
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Swallowing (deglutition)
*divided into 3 phases
1. voluntary phase (Buccal phase)
2. pharyngeal phase
3. esophageal
Define digestion, differentiate between mechanical and chemical digestion
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trypsin, pepsin, carboxypeptidase, and nuclease
Give this one a try later!
Small Intestine
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Majority of digestion and absorption occurs in the small intestine
large intestine function
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1. absorbing water and electrolytes
2. producing and absorbing vitamins
3. forming and propelling stool
4.bacteria forming Vitamin K convert proteins into amino
acids
Salivary Glands
Give this one a try later!
lie outside the mouth and empty their contents into ducts
which deliver saliva into the oral cavity
Digestive Function- Stages
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Ingestion
Digestion
Absorption
Compaction
Defecation
Describe the route of food through the primary GI tract
, Give this one a try later!
mouth--> esophagus -->stomach-->small intestine-->large intestine
Differentiate between peristalsis, segmentation, and haustral churning
Give this one a try later!
Peristalsis= in the stomach, churns swallowed food, mixing it with gastric
juices.
Segmentation= mainly small intestine, localized contractions of the GI tract
circular muscle isolating small sections of the intestine, moving contents
back and forth while subdividing, breaking up, and mixing the contents.
Slowly and segmenting, haustral churning= in the colon ensures chyme is
mixed, facilitating the absorption of water, mineral salts, and vitamins.
Esophagus and Swallowing
Give this one a try later!
Swallowing (deglutition)
*divided into 3 phases
1. voluntary phase (Buccal phase)
2. pharyngeal phase
3. esophageal
Define digestion, differentiate between mechanical and chemical digestion
Give this one a try later!
