Your ... is a muscle that helps your lungs to work.
diaphragm
Your muscles ... .
help you to speak and eat
protect your skeleton and organs
help your heart to move blood around your body
all the three options are correct
This is the ... .
calf muscle
Your nose and mouth ... air.
inhale
Your ... takes air to your lungs.
windpipe
This is the ... .
thigh muscle
These are the ... .
triceps
These are the ... .
abdominal muscles
This is the ... system.
muscular
Your ... system enables you to breathe.
respiratory
Your nose and mouth ... carbon dioxide and other gases.
exhale
These are the ... .
biceps
Your ... provide oxygen for your blood.
lungs