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Digestive System
Digestive System (Western Medical Terminology)
Term | Definition |
---|---|
Four Functions of the Digestive System (1) | Ingestion |
Four Functions of the Digestive System (2) | Digestion |
Four Functions of the Digestive System (3) | Absorption |
Four Functions of the Digestive System (4) | Elimination |
Ingestion | food material taken into mouth |
Digestion | food is broken down, mechanically and chemically as it travels through GI tract |
Digestive Enzymes | breakdown complex nutrients: protein (amino acids), sugars (glucose) and fats (fatty acids or triglycerides) |
Absorption | Digested food passes into bloodstream through lining cells of small intestines, nutrients travel to all cells of body and cells burn nutrients to release energy stored in food |
Elimination | Body eliminates waste that cannot be absorbed in blood stream; large intestines concentrates feces then passes out the anus |
Oral Cavity | organ of digestive system, includes teeth, salivary glands |
Salivary Glands | Partoid, sublingual and submandible gland |
Permanent Teeth | 32 in total, buccal (near cheek) and lingual (near tongue) |
Deglutition (swallowing) | From Sematic Nervous System (voluntary) to Autonomic Nervous System (involuntary); epiglottis (opening and closing of trachea) |