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