Question | Answer |
Why do we have the digestive system? | Because it breaks down food into usable nutrients small enough to be diffused into the cells |
Digestive tract | hollow tube extending from the mouth to the anus |
What are the structures included in the Digestive tract? | mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, and anus |
What are the accessory organs of digestion? | Salivary glands, liver, gallbladder, and pancreas |
What is another name for the digestive tract? | alimentary canal, gi-tract, gastro intestinal |
Peristalsis | wave like movement through the digestive tract |
Ingestion | food enters the body |
Digestion | process by which food is broken down into smaller particles suitable for absorption |
What does saliva break down (specifically)? | Starch |
Parotid glands | lie below and anterior to the ears |
Submandibular glands | located on the floor of mouth |
Sublingual glands | located under the tongue |
Bolus | ball of food |
Amylase | enzyme in saliva that breaks down starch |
Sphincters | like shutting the door behind you, closes so food won't go back the way it came. Two: pharyngoesophageal sphincter (located at the top of the esophagus) and the Gastroesophageal shincter or lower esophageal sphincter (LES) thickens at base of esophagus |