Digestion Flashcards
Digestion is a process by which our bodies
Absorb nutrients we need to stay alive from foods we consume
Nutrients are passed into the _ to wherever in the body they are needed
Bloodstream
Digestive system in adults is about _ ft
30
Digestive enzymes in _ begin process of chemically breaking down food
Saliva
Ball of masticated food called
Bolus
After chewing _ enters esophagus
Bolus
The epiglottis is a flap of cartilage that _
Covers the larynx as swallowed food passes to enter the esophagus
Location of epiglottis
Back of throat behind tongue
Esophagus is a large muscular tube that extends from epiglottis to
Stomach
Esophagus muscles move _ down pipe to stomach
Bolus
Muscular ring acting as stomach gateway called the
Lower esophageal sphincter
If lower esophageal sphincter doesn’t close properly _ results
Acid reflux
Stomach releases _ that break down food that enters
Digestive enzymes
Digestive acids
In stomach _ contract and churn food
Gut muscles
The churning of food helps _ (2)
Chemicals break up
Acid kill off unwanted microbes in food