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