What is the process of breaking food into nutrients?
digestion
The tongue and saliva break down food and form a _______.
bolus
What is the name of the tube that pushes food from the pharynx to the stomach?
the oesophagus
The _______ takes the soft bolus from the mouth to the oesophagus.
pharynx
What is the long, narrow tube called where nutrients pass into the bloodstream?
small intestine
What part of the digestive system uses gastric juices and muscles to break down food into smaller pieces?
the stomach
How many milk teeth do small children have?
20
What teeth are used for cutting?
the incisors
What teeth are used for tearing food?
the canines
_______ occurs when we inhale oxygen.
Inhalation
Exhalation occurs when we exhale _______ _______.
carbon dioxide
Where are our vocal cords?
in the voice box
What protects the lungs?
the rib cage
What are the tiny air sacs called where gas exchange happens?
the alveoli
What is the big tube called that moves air to and from the lungs?
the windpipe
What are the two air tubes in the lungs called?
the bronchi
