Talk:Blood

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[edit] Top fix suggestions

[edit] Blood moves wastes to intestines?

Blood also removes poisons and waste products to the liver, the kidneys, and the intestines to allow them to be rejected from the body in urine and feces.

Is it correct that blood moves wastes to the intestines to be turned into feces? AxelBoldt 03:55 31 May 2003 (UTC)

There may be creatures in which it does, but it seems very unlikely. And poisons is not a good term when products of metabolism are under discussion. Kosebamse 07:14 31 May 2003 (UTC)

The endotelium of the mesenteric arteries it's permeable to some particles, so, some pharmaceutical products, ions and small particles may go through the the arteries to the epithelial cells, and then to the lumen of the intestine. Frostbite Q. Kelvin 02:16, 4 October 2006 (UTC)

[edit] Erythrocrytic 'cell status' dispute

Red blood cells or erythrocytes (96%). In mammals, these corpuscles lack a nucleus and organelles, so are not cells strictly speaking.

I don't see how this can make sense. There are plenty of other types of cells (e.g. prokaryotic cells, such as bacteria) which lack nuclei and most organelles, yet nobody disputes their right to be called cells. Opinions? Davidmpye 22:35, 2 March 2006 (UTC)

Agreed, and cell acknowledges prokaryotic cells. I'll modify this. --[User:Calair|Calair]] 23:12, 1 March 2006 (UTC)

As eurthocytes break down (~100days of life) the heme groups are sent to the kidney and broken down, some of that is sent to the large intestine as waste. It is this blood waste that turns our poo brown. Dunno if someone wants to clean up that very untechnical definition and add it or not 66.243.209.222 (talk • contribs)

Blood is more than just erythrocytes. It is plasma, buffy coat and haematocrit. Before we mention the metabolism of haemoglobin we need to decide how we will discuss the metabolism of albumin, globulins, platelets, leukocytes... JFW | T@lk 21:05, 12 February 2006 (UTC)

[edit] Human blood?

I think we will eventually have to make an article on human blood and move most of this article's material there. Insects for instance also have blood, but this article does not apply to their blood at all. AxelBoldt 03:55 31 May 2003 (UTC)

Which raises the question whether most anatomy, physiology &c. articles should not be split into a general (zoo- or bio-) and a specific (anthropo-) part. Sometimes the distiction is made, e.g. with anatomy and human anatomy. Kosebamse 07:41 31 May 2003 (UTC)

My name is Ashley Atkinson and I would like to know why blood is a tissue instead of a liquid?

:::Yes, I think that has to happen eventually for most articles. AxelBoldt 18:55 31 May 2003 (UTC)

How much salt is in the blood... are there other things like salt in blood? This is missing... 24.159.43.217 23:55, 13 January 2007 (UTC)

[edit] Rephrase 'higher animals'

"higher animals" needs rephrasing IMO -Hemanshu 09:18, 9 Dec 2003 (UTC)

[edit] Blood and fire

This article states that

In the medieval theory of the four bodily humours, blood was associated with fire and with a merry and gluttonous (sanguine) personality.

however the bodily humours article states they associated it with air JeffBobFrank 04:03, 6 Mar 2004 (UTC)

Blood also plays a key role in the distribution of heat. Also water, but perhaps that is implied in the phrase "constitutional elements". YakkobYakkob 18:04, 6 June 2006 (UTC)

     I'm Phyllis, a junior high stud, I wanted to know whether blood is flammable

since it is associated with fire? and of course to other major elements... I have an investigatory for this, but to start with, I want to know facts about blood... Since blood contains oxygen, carbon, phorphorus and some amount of flammable materials, is it flammable too??? If not, what makes it not? or when it decomposses, is it considered flammable? and how can we make blood burst into flame? ooh... Thanks!=Phyllis

[edit] More facts

I don't know if these facts should be added, and if so, I don't know where and how to put them. However, I uncovered that " In one day, your blood travels nearly 12,000 miles. Your heart beats around 35 million times per year. Your heart pumps a million barrels of blood during the average lifetime -- enough to fill three supertankers." If put in, this need to be reworded. Prodigaldruid-Talk]] 17:06, 18 Jul 2004 (UTC)

Suggest adding this, too, if it can be confirmed: tot #red corpuscles in the body are recycled every 356 sec. Trekphiler 22:26, 22 December 2005 (UTC)

Not true, they live for 120 days. JFW | T@lk 22:58, 22 December 2005 (UTC)

[edit] Vikings a germanic tribe?

Is there any source indicating vikings was a germanic tribe? (text:Germanic tribes (such as the Anglo-Saxons and the Vikings) Dan Koehl 12:11, 3 Dec 2004 (UTC)

They spoke a Germanic language if that counts.Cameron Nedland 22:53, 28 November 2006 (UTC)

The Nordic people are certainly Germanic, but they would have made up a lot more than one tribe. —The preceding unsigned comment was added by Ndteegarden (talk • contribs) 09:02, 30 January 2007 (UTC).

[edit] Amount of blood

Does anyone know how much blood a human can loose before they die? Proportionately (i.e. 3/4 or 1/2)?

lost of 1.5l of blood will probably kill you... it is about 1/4

Let's say Mike over here has about 5 liters of blood in his body. He is shot and he bleeds to death. How much blood would Mike have lost before he dies?

This article doesn't even list the difference in blood volume between males and females. Men have 1.500 gallons of blood, compared to 0.875 gallons for women. Also, the combined surface area of all the erythrocytes in the human anatomy is roughly 2,000 times as great as the body's exterior surface. Jordan Yang 18:14 14 Oct 2005 (UTC)

Instead of complaining I would edit the article accordingly. JFW | T@lk 14:04, 16 October 2005 (UTC)

As you wish Jordan Yang 22:20 21 Oct 2005 (UTC)

Could you please provide a source for this data? The '1.5 gallon' figure for men is reasonable (although we should probably stick to metric), but 0.875 gallons for women is substantially lower than any figure I've ever encountered. This paper, for instance, gives an average blood volume for normal female subjects as ~60 mL/kg; combined with an average weight of ~ 65 kg (eyeballed from here, probably a bit low) that gives an average blood volume of ~ 3.9 liters, which is just over 1 US gallon. (You could get a figure of around .875 gallons if using Imperial rather than US gallons, but the male figure of 1.5 gallons is *not* in Imperial gallons... a good example of why it's safer to stick to metric.) And shun false precision, unless you really mean that those numbers are accurate to within 0.001 gallons. --Calair 02:45, 8 November 2005 (UTC)

[edit] Red blood bells

The red blood cells look like donuts :)--Princess Homestar

White blood cells look like mini meat balls =-)

[edit] On bleodsian and blessing

I would definately remove the comment about the Catholic Church 'adoption' of the Anglo-Saxon 'bleodsian' into 'blessing'. First off, the Catholic liturgy was spoken originally in Latin, so they probably wouldn't use the word 'blessing' persay. Granted, the ENGLISH word 'blessing' seems to come from the Anglo-Saxon owing to common sense, but my point is that the section concerning the Catholics apparently borrowing yet another slice of paganism for their own practices smacks a little of poor scholastics. So, I'd just like to see that section cleared up. I suppose I could do it myself, but I wouldn't be so bold as to do something so drastic on the actual article, so I'll leave it to someone more experienced. Ryan 23:38, 2 February 2006 (UTC)

The etymology of "bless" indicates that it was used in the translation of the Bible to English. I am doubtful that the Catholic Chuch adopted the term. The early English translations of the Bible were Reformation-related activities I believe.

From EtymOnline entry for "bless": O.E. bletsian, bledsian, Northumbrian bloedsian "to consecrate, make holy," from P.Gmc. *blothisojan "mark with blood," from *blotham "blood" (see blood). Originally a blood sprinkling on pagan altars. This word was chosen in O.E. bibles to translate L. benedicere and Gk. eulogein, both of which have a ground sense of "to speak well of, to praise," but were used in Scripture to translate Heb. brk "to bend (the knee), worship, praise, invoke blessings." Meaning shifted in late O.E. toward "to confer happiness, well-being," by resemblance to unrelated bliss. No cognates in other languages. Blessing is O.E. bledsung.

[edit] Merge Oxygenated blood into Blood

(The merge was proposed by L33th4x0rguy.) There is very little content in the Oxygenated blood article, but I agree it seems much more appropriate in the Blood article. In fact, it seems as though parts already overlap with the information under the Physiology of Blood section. --Leapfrog314 02:02, 6 May 2006 (UTC)

Support merge, though all but one sentence or so is redundant with this article. --Calair 01:16, 8 May 2006 (UTC)

Merged Little content, merged. Navou ^talk 02:14, 12 May 2006 (UTC)

[edit] Effect of increased blood salinity

Hey, can someone tell me the effects of increasing the level of blood salinity on blood? (Hpetwe 01:10, 18 May 2006 (UTC))

Increased sodium and chlorine levels in the blood disrupt the electolyte balance between the cells and intracellular spaces, including blood. This can shift water out of the cells and into the intracellular spaces. Additionally, increased salinity can alter the nervous system's ability to communicate.

That's the simple answer. I would get a good pathophysiology book and reference electrolyte imbalances... 68.230.35.75 03:47, 25 June 2006 (UTC)

[edit] Hemophobia?

This redirects here understandably as hemophobic is a property of certain tissues that keep it contained, much as cell linine is hydrophobic I'd assume vein and artery lining is, at least until the branchouts. Anywho, I'm wondering if anyone knows of the psychiatric term for it, if different, or if there is an article for it. Surely many people fear blood, and hemophobia seems to be the right word for it, similar to how the chronic royal bleeders were hemophiles. Tyciol 05:32, 19 June 2006 (UTC)

The redirect is stupid! Links to "hemophobia" should either go to Phobia or wiktionary hemophobia, as the article Blood does not mention hemophobia at all! I doubt that "hemophobic" is a common-usage word like hydrophobic is used to refer to lipids! I'm changing the article where I had linked "hemophobia" and will change that aricle's link to Phobia. Dikke poes 20:00, 26 December 2006 (UTC)

[edit] White Blood Cells only being leukocytes?

I can explain several more types of WBCs other than leukocytes. This is overly vague and should be corrected by an expert in the field. He or she might know more than I do about this.

The problem is one of historical nomenclature. If you put blood in a centrifuge, the red cells spin down leaving a thin layer of yellowish stuff on the top. This is called the "buffy coat", and contains a mixture of cells which we now call "white cells" (leukocytes). This was the Victorian conception of blood cells, which we are sort of stuck with, even though we now know several different types of white cell and their very different functions. (We have known about red cells in blood since Leeuwenhoek).

So all white cells are leukocytes. We divided them up based on (initially) their staining with haematoxylin and eosin (which gives us neutrophils, eosinophils and basophils), their morphology (which gives us mononuclear leukocytes ("monocytes") and polymorphonuclear leucocytes ("polymorphs")), and more recently, cell antigen typing.

Certain malignant conditions result in over-production of (usually non-functional) white cells. Put this blood in a centrifuge, and the buffy coat isn't a tiny coating, it's a huge great layer on top of the red cells. The name for this disease translates as "white blood": leukaemia.Preacherdoc 02:11, 28 September 2006 (UTC)

[edit] Blood function as a provision of force

eg, an erection. While not the most prominent function of the blood i beleive it should be included for completeness and to show the versitile applications blood is used for in the body.

I changed the "provision of force" idea to a section on erectile tissue, mainly because it is my belief that the blood is being used for engorgement rather than to provide force. Asarelah has seen fit to change it back. I still don't understand what force is being provided and why it isn't better as a section on erectile tissues. 58.165.234.110 23:27, 27 March 2007 (UTC)

It could be argued that the purpose of an erection is to transmit force from the base of the penis to the head, by making it rigid, but I agree that it's not very clear. I changed it to the more general "hydraulic functions" (as used in the intro), which covers things like jumping spiders as well, and moved it ahead of 'colour' to keep the things that are actual functions grouped together. --Calair 00:49, 28 March 2007 (UTC)

That's cool :) 58.165.234.110 01:29, 28 March 2007 (UTC)

[edit] I want info

i readed in a book full with facts o(het grote lexicon over grote misverstanden, netherlands) that blood turns red after it leaves the body. its actually purple/blue, but cause to much oxygen when u get wounded the blood turns red! This is a good book full with correct information.

A lot of people believe that story, but it's not true. When you donate blood, the blood comes directly from a vein, and can be seen in the tubing that leads to the bag - it's a dark red all the way, even without any contact with oxygen. Some of the other information in your book might be correct, but not this part. See Blood#Color for more information on this. --Calair 08:39, 15 November 2006 (UTC)

Lol i didnt read it right.. it said that its wrong that blood turns red after leaving the body :PTwtje 11:01, 15 November 2006 (UTC)

Blood changes colour from vivid red when oxygenised to dark dull red when deoxygenised

can you lose blood internally?? hanabi-sama 02:29, 26 February 2007 (UTC)

Yes. People can bleed internally from serious injuries. Asarelah 03:11, 26 February 2007 (UTC)

Any other ways, if i may ask...??

A serious health problem such as an ulcer might cause internal bleeding. Also, please sign your posts using four tildes. Instructions on how to do so are on the top of the talk page when you edit it. Thank you. Asarelah 20:27, 3 March 2007 (UTC)

oops, i am so sorry about that, and thank you very much for the information, im a noob.... cyrille 04:33, 8 March 2007 (UTC)

[edit] Pic of blood

Not a microscopic image or anything, but maybe some blood in a pouch from the Red Cross or something. —The preceding unsigned comment was added by CPRdave (talk • contribs) 19:38, 2006 November 23 PST.

A photo of blood in a medical context would be a nice addition. A photo of blood on a carpet would not be welcome.

PS: Please add your signature/datestamp to your posts on talk pages, using ~~~~. Er iel hon an 05:11, 24 November 2006 (UTC)

this page needs editing

[edit] Contradiction

Regarding what makes blood red:

"red blood cells, which carry respiratory gases and give (blood) its red color because they contain hemoglobin"
"(red blood cells) only appear red when examined under a microscope with pigment or still within the plasma solution, because the plasma in blood makes us think that the red blood cells are red. Red blood cells are in fact a straw, yellow colour despite the name."
"The other 55% is blood plasma, a fluid that is the blood's liquid medium, appearing yellow in color." —The preceding unsigned comment was added by Nonpareility (talk • contribs) 07:49, 13 January 2007 (UTC).

Looks like two people vandalised the article in a row and the subsequent revert didn't go back far enough. Fixed now. --Calair 12:25, 13 January 2007 (UTC)

[edit] Boiling point

Does anybody happen to know the boiling point of blood? // Nick || Talk || 01:33, 18 January 2007 (UTC)

Because blood isn't a pure substance, but instead a mixture of all sorts of things (cells, proteins, electrolytes, lipid globules, etc. etc.) it won't possess a specific boiling point. Heat will permanently denature many of the components of blood. The colligative properties of solutions predict that the water in the blood will boil at a temperature greater than 100 degrees C because of its solute load, but exactly what that temperature is, I don't know.Preacherdoc 09:56, 2 March 2007 (UTC)

[edit] Art

Should include blood drawings but more information on these must be found. --Daniel C. Boyer 19:48, 6 April 2007 (UTC)

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