What happens when cells get oxygen from the air to obtain energy and release carbon dioxide from the body as waste?
Respiration
What is the process of moving nutrients and oxygen to the body's cells called?
Circulation
What other function does the circulatory system provide in addition to moving nutrients and oxygen?
Collecting waste substances
What is the process of cleaning the blood by filtering the waste substances?
Excretion
What is it called when food is changed into nutrients?
Digestion
What system gives cells the nutrients it needs?
The digestive system
Where does digestion begin?
When TEETH grind the food
What happens after the teeth grind food?
The mouth secretes SALIVA to break down food
What happens after saliva breaks down food?
The TONGUE mixes food and saliva into a BOLUS
Where does the bolus travel?
Down the PHARYNX and OESOPHAGUS
Where does the oesophagus push the bolus?
Into the STOMACH
What juice does the live secrete?
BILE
What does the pancreas do?
It produces PANCREATIC JUICE that helps in the digestion of PROTEINS
