Human Digestive System Flashcards
How long does it take for food to go from the mouth to the esophagus?
5-10 seconds.
How long does food stay in the stomach?
2-6 hours.
Where do most nutrient absorption happen?
Small intestine.
How long does food stay in the small intestine?
5-6 hours.
How long does food stay in the large intestine?
12-24 hours.
What purpose does saliva serve?
Kickstart to digestion, helps keep the mouth moist, and helps you chew and swallow food.
What purpose does mucus serve?
Protects your mouth from abrasions and drying out.
What purpose do enzymes serve?
Helps break down starches, E.g, amylase.
What purpose do electrolytes serve?
Serves as a buffer action, basically a protective barrier.
What is bolus?
Food + saliva.
What part of the digestive system leads into the trachea and esophagus?
Pharynx
What role does the pharynx serve?
Serves as a passageway of air and food.
What is the epiglottis?
Covers the trachea during swallowing so food doesn’t go down to the lungs.
