5 processes of the digestive system
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What are the 5 processes of the digestive system?
1) ingestion 2) mechanical digestion 3) chemical digestion 4) absorption 5) defecation
What is mechanical degestion?
Physical movements that break up large food items and mix food with secretions.
What is chemical digestion mean?
The breaking of large food molecules into small nutrient molecules that can be absorbed into the blood or lymph.
What is absorption?
passage of small nutrient molecules, water and ions from the lumen of the GI tract across the epithelium to blood and lypmh capillaries.
Define ingestion.
taking in large food items and liquids into the oral cavity.
What is defecation?
the elimination of non-digestible materials.
