In the _______, oxygen in the air is exchanged for carbon dioxide in the blood.
bronchi
trachea
alveoli
nose
In the alveoli, _________ in the air is exchanged for carbon dioxide in the blood.
nitrogen
oxygen
carbon dioxide
nutrients
In the alveoli, oxygen in the air is exchanged for ________ __________ in the blood.
nutrients
nitrogen
oxygen
carbon dioxide
The bronchi take the air into the lungs and then the air goes to the ___________.
bronchi
mouth
alveoli
trachea
We breathe in air through our _______ and _________.
lungs and alveoli
trachea and bronchi
nose and trachea
nose and mouth
The air from our nose goes down the trachea and into the __________.
lungs
alveoli
bronchi
mouth
We breathe out ______ ________ from our nose and mouth.
oxygen
nutrients
water
carbon dioxide
Where does gas exchange happen in the circulatory system?
In the heart
In the capillaries
In the arteries
In the veins
What does the circulatory system transport?
the arteries
oxygen and nutrients
the veins
the heart
The heart ....
Is where gas exchange happens.
Is a small blood vessel that connects arteries and veins.
Is a big muscle that pumps blood around the body.
Is part of the digestive system.
What takes blood from the body to the heart?
arteries
capillaries
the lungs
veins
What takes blood from the heart to the body?
capillaries
veins
the lungs
arteries
Where do we take in food? (digestive system)
through the oesophagus
through the mouth
through the anus
through the stomach
From the mouth, food travels down the ___________ into the stomach. (digestive system)
trachea
small intestine
large intestine
oesophagus
Food goes from the oesophagus into the _________. (digestive system)
small intestine
mouth
stomach
large intestine
Food goes from the stomach into the _______ __________. (digestive system)
anus
oesophagus
large intestine
small intestine
