Digestive system

• Process of breaking down food

  Digestive process
• The process of food intake

  Ingestion
• The process involving mechanical and chemical food breakdown

  Digestion
• Moving food from one region to another

  Propulsion
• Alternating waves of contraction

  Peristalsis
• Moving food back and forth

  Segmentation
• Through Peristalsis, food is moved from one region to another.
• Digested food is absorbed by cells

  Absoption
• Distribution of food

  Assimilation
• Segmentation aids in mixing.
• Excreting of undigested materials

  Elimination
• The start of Digestion

  Oral Cavity
• The Pharynx is the tube that opens to the esophagus and trachea.
• Salivary Amylase digests starch into sugar
• Part of the digestive track but isn't part of digestion or ingestion

  Oral Cavity
• Breaking down of macromolecules using enzymes and gastric juices

  Chemical digestion
• Involved in the mastication of food

  teeth
• Epiglottis is the flap of cartilage covering the trachea during swallowing
• The Salivary glands secrete salivary amylase
• Tasting, swallowing, mixing of food

  tongue
• The Esophagus Carries food into the stomach.
• The swallowed food + Saliva

  Bolus
• What is the shape of the bolus?

  ball-shaped
• The Esophagus carries food into the stomach through peristalsis
• Stores and mixes food

  Stomach
• What are the gastric juices in the stomach?

  Hydrochloric acid, Pepsin
• Which part of the digestive track digests and breaks down proteins?

  Stomach
• What is the cause of lactose intolerance?

  low resin
• Acid that softens food and kills microbes

  Hydrochloric acid
• Inner covering that protects the stomach from acids

  Mucosal membrane
• Acid that digests milk

  Resin
• Folds in the inner lining of the stomach

  Rugae
• Bolus + Acid

  Chyme
• Forms the bile

  Liver
• Stores bile

  Gallbladder
• Coverts fat to small droplets

  Bile
• What will happen if the large intestine fails to work properly?

  Dehydration
• Which macromolecule is made out of a long carbon chain?

  Carbohydrate
• Write the digestive processes in order

  Ingestion, Digestion, absorption, Elimination
• What do the Pancreas produce?

  lipase and protease