blood temperature

kmgraju

Dear friends

I would like to know what is the normal temperature of human blood flow through coronary artery?

What is the temperature of the blood when the person suffering from very high feverish condition?

Regards

kmgraju

kmgraju

Dear friend

What is temperature of the blood when the person is suffering from very high fever.

What is specific heat capacity of the blood? is it constant pressure or constant volume?
Please clarify

Thanks in advance

Regards

Govind

Danger

Hi.
Normal body temperature is 37°. Anything more than a degree above that is dangerous for an adult. Children regularly hit 40° without distress (I hit close to 42° with scarlet fever, but the lower measure applied during my bouts with red measles, german measles, mumps on the left, mumps on the right, chicken pox, and several varieties of influenza.) The last instance of that was in 1964.
I don't have a clue as to what you mean about "heat capacity" of blood. That is not a medical term that I've ever heard of. Do you mean when it boils, or when the oxygen bonded to the haemoglobin decides to seek a new home, or what....?

edit: That was wrong. I just remembered that I caught the "right mumps" in '66. My mother warned me, as she had during my to-do with the left mumps, that I would be rendered sterile if I tried to get out of bed. If any of you have a mother like that, ignore her.

mfb

The specific heat capacity of blood is similar to water, about 4J/(gK). In fact, treating the whole body as a big blob of water is a good approximation - with 80kg, this corresponds to about 320kJ/K.
The human body is roughly at constant pressure, but that is not relevant here.

mazinse

Actually blood temperature is a couple degrees celsius warmer, so not the typical 37 C. It varies from 2 - 3

kmgraju

Dear friend
What is the value of thermal expansion coefficient of blood

Thank you

kmgraju

mfb

That should be very similar to water, too.
~2*10^-4/K at 20°C as volume expansion.

kmgraju

Thank you
very much
I need some reference material to argue my data

Thank you

Regards

mfb

I would be surprised if thermal expansion of blood is relevant anywhere. Temperature differences are below 5K (otherwise they are lethal), so expansion is below 0.1% or ~5ml for 5l of blood.