7.02 Respiratory and Circulatory
By: Ian Santiago
The beginning of the Journey
The life of the red blood cell
begins at the bone marrow.
There, in that place is where
the red blood cell comes from
and lives with its purpose.
The red blood cell is made with
specially hemoglobin so it can
attract oxygen. Luckily, the red
blood cell does not need nor
use cellular respiration.
In through the blood
After the blood cell comes
out of the bone marrow, it
makes its way to the blood
and takes up most of the
space. This blood makes its
way through the vain
capillaries, and at some
point, gets to the arteries.
Next, this new blood is
ready to be filter by the
heart. After, the heart is
ready to send this over to
the pulmonary circulation
and lungs.
At the Lungs
Now at the lungs and in
the aveoli, the red blood
cell has picked up all the
oxygen it needs to carry,
also experiencing what
carbon dioxide is. The
oxygenated blood will be
sent back to the heart.
The End
This isn’t exactly
the end of this
cell. This cell will
keep working for
the rest of its life
and will help the
body in many
types of ways.