Blood is the main fluid of all living organisms. Without blood, no person on this earth can live. In this presentation, the overview of human blood is discussed. I hope it will help in the studying material for most of the students.
2. Blood!
Blood is a body fluid that
delivers necessary substances
such as nutrients and oxygen to
the cells.
Transports metabolic waste
products away from those same
cells.
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4. Plasma:
➜ Largest part
of blood.
➜ Light yellow
liquid in which
blood are
absent but
contain
protein and
other
constituents.
➜ It is main
medium for
excretory
product
tranportaion.
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5. Types of blood
Cells:
•Red blood cells (RBCs) or
erythrocytes.
•White blood cells (WBCs) or
leukocytes.
•Platelets or thrombocytes.
14. Haemoglobin:
It is a protein which is major
component of RBCs.
Composed of four polypeptide
chain each of which is bound to
a red pigment molecule called
heme.
18. Hemoglobin:
➜ Oxygen Binds in lungs and
dissociate in tissues.
➜ Carries small amount of
carbon dioxide. Carbon dioxide
bind with polypeptide chain of
hemoglobin not with heme.
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22. Hemoglobin
Give red color to
blood due to iron
present as
binder in their
molecule.
Hemocyanin
Give blue color
due to copper
present as
binder in their
molecule
23. Blood
Contained in closed
circulatory system
Composed of plasma
in which RBCs,
WBCs and platelets
are suspended.
Hemolymph
Contained in
open circulatory
system
Composed of
plasma in which
Hemocytes are
suspended.
24. Hemocytes and leukocytes both have same
function.
Both play an important role in body immune system
that are involved in protecting the body from
foreign invader
25. White blood
cells:
Derived from multipotent cells
in the bone marrow known as
hematopoietic stem cells.
All white blood cells have nuclei.
Cells that have the capacity to self-
renew by dividing and to develop into
multiple specialized cell types present
in a specific tissue or organ
27. White blood cell
Classification of white blood cells
Myeloid cells Lymphoid cells
A young blood
cell that
originate in the
bone marrow
Provide an immune
response that
attacks specific
kinds of antigens
30. Lymphoid cells
(lymphocytes
T cells B cells
Natural
killer cells
Helper T
cells
Memory T
cells
Cytotoxic T
cells
Plasma
Cells
Memory B
cells
31. White blood
count:
The number of leukocytes in the
blood is often an indicator of
disease, and thus the white blood
cells count is an important subset
of the complete blood count
The normal white blood count
ranges between 4500-11000 per
microliter of blood or 4 × 109/L and
1.1 × 1010/L
32. Leukocytosis
Increase in the number of
leukocytes over the upper limits.
Leukopenia
Decrease in the number of
leukocytes over the upper limits.
Disorders of WBCs
33. Platelets
Platelets helps in blood clotting or
hemostatis.
Normal platelets range in human body is
150,000 to 450,000 per microliter of
blood.
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