Living Systems - Respiratory System Flashcards
1
Q
In the lungs _____ what combined with ______.
A
Oxygen, blood
2
Q
Lungs also allow ____ to be removed.
A
Carbon dioxide
3
Q
What are alveoli?
A
They are millions of air sacs in the lungs that are surrounded by blood vessels.
4
Q
diaphragm
A
The diaphragm is a sheet of tissue that is below the rib cage.
When the lungs expands the diaphragm moves down allowing space
When the lungs contract the diaphragm move back and decreases the size of the lungs.
5
Q
When we breathe in ___, it goes down a tube called the ________ into two other tubes which link to the two other lungs called _______.
A
Air , trachea, bronchi
