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Digestive System Natalie Montoya Period 2 - Coggle Diagram
Digestive System Natalie Montoya Period 2
Major functions of the digestive system
Mechanical Digestion - physical breaking down of large food pieces into smaller pieces
Absorption of food for metabolism
Chemical Digestion - breaks food into simpler chemicals that can be absorbed by cells in the body
Disorders of the digestive system
Gastroesophageal Reflux Disease (GERD)
Inflammatory Bowel Disease (IBD)
Irritable Bowel Syndrome (IBS)
Crohn disease
Digestive enzymes
Carbohydrates (mouth and small intestine)
Maltase - glucose
Lactase - glucose 🠖 galactose
Sucrase - glucose 🠖 fructose
Amylase - poly 🠖 di
DNA/RNA (pancreas)
Lipase - fatty acids and glycerol
Proteins (stomach and small intestine)
Protease - peptide 🠖 amino acid
Pepsin - protein 🠖 peptide
Lipids (small intestine)
Nuclease 🠖 nucleotides
Location of digestion and absorption of each macromolecule
The digestive/GI tract is a long tube that starts at the mouth and ends at the anus. It is made up of a series of muscles that coordinate the movement of food and other cells that produce enzymes and hormones to aid in the breakdown of food.
Digestive enzymes are enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body. Digestive enzymes are found in the digestive tracts of animals.
Layers of the GI tract
2.) Submucosa - areolar connective tissue containing major blood vessels
3.) Muscularis or Muscular Layer - two muscles of smooth muscles to allow peristalsis and segmentation
1.) Mucosa
Lamina Propria
Muscularis Mucosae
Epithiliujm
4.) Serosa - outer covering of the GI Tract
Major organs of the digestive system
1.) Alimentary canal or gastrointestinal (GI) tract
Mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus
2.) Accessory digestive organs
Teeth, tongue, gallbladder, salivary glands, liver and pancreas