Digestive system
Where does the process of digestion begin?
Mouth
This organ transports food from the mouth to the stomach
esophagus
Ingestion, Digestion, Absorption, Elimination
What is the name for a chemical that speeds up a chemical reaction in the body. Examples of this are amylase or pepsin
Enzyme
What is in saliva that begins the breakdown of carbohydrates?
Amylase
Name the organs of the digestive tract and put them in the correct order of digestion (Hint: 5 organs)
Mouth, esophagus, stomach, small intestine, large intestine
What is mechanical digestion?
physical break down of food by breaking, tearing, crushing and mashing
Our stomach holds _____ acid, that helps digest food. This acid does not burn through our stomach bc of the mucus lining inside.
hydrochloric
What nutrient serves as our body's main source of energy?
Carbohydrates (fruits, vegetables, grains, bread)
Name of the watery substance found in our mouths that facilitates the first chemical digestion
Saliva
What is the function of the small intestines?
Absorb nutrients
What is chemical digestion?
breaking down food by enzymes
The mixture of food and stomach acid that leaves our stomach and goes to the small intestine is called _________
chyme
The human body is about _____% water
60 - 70%
This area is part of the digestive and respiratory systems. It connects the nasal and oral cavities. Located above the esophagus.
pharynx
This organ absorbs excess water and compacts waste
large intestine
What other body system works closely with the digestive system to absorb the nutrients and send them throughout the body?
Circulatory system
If this valve (located between the stomach and small intestine) does not function properly, nutrients will not make it to the small intestine to be absorbed.
pyloric
Name the 3 accessory organs that aid in digestion.
BONUS - name a 4th that seems to no longer serve any purpose
Liver, pancreas, gallbladder
appendix
What type(s) of digestion occur(s) in the stomach?
chemical and mechanical
What type(s) of digestion occur(s) in the mouth?
chemical and mechanical
What are the small structures in the small intestine that help absorb nutrients?
Villi
What is the movement or contraction of the muscles around the esophagus to allow food to pass through?
Peristalsis
What fluid is made and released by the liver and stored in the gallbladder. It helps with digestion and breaks down fats.
Bile
The small intestine is approximately __ ft long
The large intestine is approximately __ ft long
21-22 ft
5-6 ft