What is blood composed of?
55% plasma and 45% Formed Elements - Mostly RBC then, Platelets, and WBC
Primary function of blood
transport and deliver oxygen and nutrients to and
remove wastes from body cells
Functions of Blood - Transportation
The endocrine system uses blood to transport hormones carries them to distant target cells.
What is the job of a white blood cell?
seek out and destroy internal threats, such as cells with
mutated DNA that could multiply to become cancerous, or body cells infected with viruses
Why is highly oxygenated blood a brighter red?
More oxygen bound to iron, the brighter red it is. Hemoglobin is a pigment that changes color
What does Viscosity do your blood if it is too high?
Thickness or resistance to flow, and is influenced by
the presence of the plasma proteins and formed
elements within the blood.
Why is blood slightly higher temperature when compared to the rest of your body?
it experiences some friction and resistance, which produces
some heat and other effects.
How much blood does Adult males typically average ?
5 to 6 liters of blood
What is Anemia?
30% Erythrocytes (Too much plasma)
What is Polycythemia?
70% of Erythrocytes (too many Erythrocytes)
What does Dehydration do to blood?
70% of Erythrocytes (not enough blood)
Pathway of Albumin
Albumin created in liver - Na binds to it in the blood - water follows Na gradient - maintain both blood volume and blood pressure
Pathway for Globulins (Alpha and beta) and what it does
Globulins produced in liver - Flows in the blood - Transport iron, lipids, and fat-soluble vitamins. - Aid Albumin in contributing to osmotic pressure.
Purpose of Gamma globulins
-Produced by specialized white blood cells known as plasma cells.
- Involved in the immune response and are better known as antibodies or immunoglobulins
Fibrinogen
-Produced in the liver
-Essential for blood clotting process
Red blood cells typically live for
120 days
What is the process of hemopoiesis?
Bone Merrow - hemopoietic stem cells = lymphoid progenitor cell + Myelinated progenitor cells - components of red blood cells
Prior to birth how does hemopoiesis work?
- Beginning with the yolk sac of the developing embryo
- Continuing in the fetal liver, spleen, lymphatic tissue
- Eventually the red bone marrow takes over
Process of Erythropoietin (EPO)
Low blood oxygen - Liver + Kidney - Erythropoietin - Blood stream - Red bone merrow - Increase number of red blood cells - Increase oxygen carrying capacity
