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