The Breathing Shstem Flashcards
Nose
We are supposed to inhale through our nose.
Trachea
The trachea,or windpipe carries air to and from the lungs
Bronchi and bronchchioles
We have two bronchi each bronchus carries air between the trachea and a lung
Alveoli
Each lung contains millions of tiny air-sacs called alveoli
diaphragm
The diaphragm is a sheet of muscle that forms the base of the chest
Ribs and intercostal muscle
Ingestion/eating
Food is taken in by the body
Digestion
Food is broken down
Absorption
Digested food passes into the bloodstream
Assimilation
Using the food in the cells of the body
Elimination
Getting rid of undigested
Enzymes
Involves the use of chemicals called enzymes to breakdown food,enzymes are chemicals that speed up reactions without being used up in the reaction,enzymes act on a substrate and breaks it down into a product
Chemical digestion
-amylase in mouth
-enzymes in stomach
-most chemicals digestion
Physical digestion
Physical digestion happens in the mouth with the teeth and the stomach churning (turning)
Gallbladder
Storage of bile