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