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Summary Physiologic Functions of Blood

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This breaks down the respiratory, buffering, nutritive, thermoregulatory, immune, and hemostatic roles of blood in a simple, easy-to-study format. It connects oxygen transport, pH balance, immunity, and clot formation to real clinical relevance.

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Respiratory Function Maintenance of constant body temperature
~
One of it's main function is to transport oxygen ~
This is what we call as homeostasis. It absorbs and
between the lungs and tissues of the body. distribute heat in the body.

~
This is the function of the red blood cells. ~
Temperature regulation occurs as a result of the
dilation and constriction of vessels in the blood.
~
Not only can it transport oxygen but also carbon
dioxide (exhaled). ~
Homeostasis is maintained through the release or
conservation of warmth..
Buffering Action Defense Against Infectious Agents
~
The blood contains buffer of carbonic acid and ~
The white blood cells and antibodies circulate
bicarbonate anion in order to maintain blood pH through the blood and destroy any foreign invaders
between 7.35 - 7.45 (PH regulation) (pathogens) that they encounter.
~
In this buffer, hydronium and bicarbonate anion are ~
Inflammatory mediators are released and so we
in equilibrium w/ carbonic acid. experience inflammation (which occurs in blood
vessels).
~
To prevent acidosis (PH drops below 7.35) or
alkalosis (put rises above 7.45), the body relies on the ~
Antigens are molecular markers of pathogen and
interaction of a chemical buffer system in the blood. they are taken to lymphatic organs to stimulate
powerful adaptive immune system responses.
Nutritive Action
Hemeostasis
~
Supply ring oxygen to cells and tissues means ~
This is the natural process in which blood flow slows and
a clot forms to prevent blood loss during an injury.
~
Providing essential nutrients to cells, such as amino
acids, fatty acids, and glucose. ~
Clotting proteins are mainly produced in the liver.
~
Digested nutrients are absorbed into the bloodstream ~
12 proteins known as clotting factors participate during
through capillaries in the villi.
endothelial injury. One important factor is fibrinogen
which generates fibrin activated by the coagulant
thrombin, and forms a mesh that clots blood by the
~

platelet plug.

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