7.
In adults, the formed elements make up about 40 percent to 45 percent of the
total blood
e.
8.
The primary function of RBCs is to contain the protein called
bin,
which in turn carries
n.
The shape of the RBC increases its capacity for the
w of substances into
and out of the cell.
Within the cytoplasm of the RBC is a special protein called
n.
Because of its iron atoms, it has a great affinity for
n.
At the end of its life period, the "worn out" RBC is removed by the
n and
the "pieces," particularly the iron, are salvaged by the
.
9.
The second category of formed elements of the blood is the
e blood cells.
Phagocytic WBCs actively attack foreign substances and engulf them in a
process called
s. When the WBCs are overcome and die, their bodies
accumulate to form a substance called
.
The lymphocytes are involved with the i
e system of the body, including
the production of
ies.
10.
The third type of formed element in the blood is the
s. These are
fragments of former
s. They are very important in the
ing process.
11.
After the formed elements and fibrinogen are removed from the blood, the
remaining fluid is called
.
12.
One very important transport function of the blood is to carry gases back and
forth between the
s and the individual
s of the body. The sites of exchange
are the
i and the individual body
s. At these sites, a gas moves from the
area where its concentration is
er to the area where its concentration is
er.
Near the alveoli, most of the dissolved oxygen is rapidly picked up by the
h
n of the
s. Therefore, the RBC is the main transporting element for
.
Produced during metabolic oxidation is
n
e. It passes through the cell
membrane and the capillary wall to become dissolved in the
a of the blood.
Through the action of an enzyme, most of this gas is transformed into
ate ions.
MD0007
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