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Transcript
BY ALICE ASH
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Glucose + Oxygen Carbon Dioxide + Water
+ Energy
C6H12O6 + 6O2 6CO2 + 6H2O + Energy
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6 CO2 + 6 H2O C6H12O6 + 6 O2
Carbon dioxide + Water + Light energy
Glucose + Oxygen.
DIAGRAM OF THE
LUNGS
DIAGRAM OF THE
HEART
DIAGRAM OF THE
ATERIES AND THE
VIENS
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The primary function of the respiratory system is the supply of oxygen to
the blood so this in turn delivers oxygen to all parts of the body. The
respiratory system does this while breathing is taking place. During the
process of breathing we inhale oxygen and exhale carbon dioxide. This
exchange of gases takes place at the alveoli. The average adult's lungs
contain about 600 million of these spongy, air-filled sacs that are
surrounded by capillaries. The inhaled oxygen passes into the alveoli and
then diffuses through the capillaries into the arterial blood. Meanwhile,
the waste-rich blood from the veins releases its carbon dioxide into the
alveoli. The carbon dioxide follows the same path out of the lungs when
you exhale.
To put it simply, the principle functions of the respiratory system are:
Ventilate the lungs
Extract oxygen from the air and transfer it to the bloodstream
Excrete carbon dioxide and water vapour
Maintain the acid base of the blood
1.
2.
3.
4.
5.
We breathe in over 13 pints of air a minute
Each lung contains 300-350 million respiratory
units called alveoli making it a total of 700
million in both lungs.
More than half a litre of water per day is lost
through breathing.
People under 30 years of age take in double the
amount of oxygen in comparison to a 80 year
old.
Yawning brings more oxygen to the lungs