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'''White blood cells''' (also called '''leukocytes''' or '''leucocytes''') are the cells of the [[immune system]] that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from multipotent cells in the [[bone marrow]] known as [[hematopoietic stem cells]]. Leukocytes are found throughout the body, including the blood and lymphatic system.
==White==


==Types of White Blood Cells==
[[File:Paintings_from_the_Chauvet_cave_(museum_replica).jpg|thumb|right|Replica of paintings from the Chauvet cave, showcasing the use of white.]]
There are five main types of white blood cells, which can be divided into two main categories: granulocytes and agranulocytes.


* '''[[Granulocytes]]''': These cells contain granules in their cytoplasm and include [[neutrophils]], [[eosinophils]], and [[basophils]].
White is the lightest color and is achromatic (having no hue). It is the color of fresh snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on television and computer screens is created by a mixture of red, blue, and green light.
* '''[[Agranulocytes]]''': These cells do not contain granules in their cytoplasm and include [[lymphocytes]] and [[monocytes]].


==Function of White Blood Cells==
==History and Symbolism==
The primary function of white blood cells is to fight infection. They do this by attacking and destroying the organisms that cause disease. White blood cells also play a role in the immune response, inflammation, and allergic reactions.


==White Blood Cell Count==
White has been a significant color in art and culture throughout history. In ancient Egypt, white was associated with purity and sacredness. The [[File:Ägyptischer_Maler_um_1360_v._Chr._001.jpg|thumb|left|Ancient Egyptian painting using white.]] Egyptians used white in their art to depict the sacred and the divine.
A '''[[white blood cell count]]''' is a test that measures the number of white blood cells in your body. This test is often included with a complete blood count (CBC). The normal number of WBCs in the blood is 4,500 to 11,000 WBCs per microliter (4.5 to 11.0 x 109/L).


==See Also==
In ancient Rome, white was worn by the [[Chief Vestal|Vestal Virgins]] as a symbol of purity. The [[File:Chief_Vestal.jpg|thumb|right|Chief Vestal wearing white.]] Vestal Virgins were priestesses of Vesta, goddess of the hearth, and their white garments symbolized their commitment to chastity and service.
* [[Red blood cells]]
* [[Platelets]]
* [[Hematopoiesis]]
* [[Immune system]]


==References==
During the Middle Ages, white was used in religious art to symbolize purity and holiness. The [[File:Sodoma_-_Life_of_St_Benedict,_Scene_31_-_Benedict_Feeds_the_Monk_-_WGA21581.jpg|thumb|left|St. Benedict depicted in white.]] color was often used to depict the robes of saints and angels.
<references />


[[Category:Blood cells]]
==Use in Art==
[[Category:Immune system]]
 
{{stub}}
White has been used extensively in art to create contrast and highlight other colors. In the Renaissance, artists like [[Fra Angelico]] used white to depict divine light and purity. The [[File:Transfiguration_by_fra_Angelico_(San_Marco_Cell_6).jpg|thumb|right|Fra Angelico's use of white in the Transfiguration.]] use of white in paintings helped to create a sense of depth and realism.
<gallery>
 
File:Paintings_from_the_Chauvet_cave_(museum_replica).jpg|White
In the Baroque period, artists like [[Bartolomeo Passarotti]] used white to highlight the features of important figures, such as [[Pope Pius V]]. The [[File:Bartolomeo_Passarotti_Pope_Pius_V.jpg|thumb|left|Pope Pius V depicted in white.]] use of white in clothing and drapery added a sense of grandeur and importance.
File:Ägyptischer_Maler_um_1360_v._Chr._001.jpg|White
 
File:Maler_der_Grabkammer_des_Thot_001.jpg|White
==Cultural Significance==
File:Chief_Vestal.jpg|White
 
File:Sodoma_-_Life_of_St_Benedict,_Scene_31_-_Benedict_Feeds_the_Monk_-_WGA21581.jpg|White
White is often associated with purity, innocence, and cleanliness. In many cultures, white is worn at weddings to symbolize the purity of the bride. In some Eastern cultures, however, white is associated with mourning and funerals.
File:Bartolomeo_Passarotti_Pope_Pius_V.jpg|White
 
File:Ghent_Altarpiece_D_-_Adoration_of_the_Lamb_2.jpg|White
In modern times, white is used in design and architecture to create a sense of space and simplicity. It is often used in minimalist designs to convey a sense of calm and order.
File:Transfiguration_by_fra_Angelico_(San_Marco_Cell_6).jpg|White
 
File:Mary_Queen_of_Scots_in_mourning.jpg|White
==Related Pages==
File:BasilikaOttobeurenHauptschiff02.JPG|White
* [[Color theory]]
File:Marie-Antoinette_par_Elisabeth_Vigée-Lebrun_-_1783.jpg|White
* [[Achromatic colors]]
File:Gilbert_Stuart_-_George_Washington_(Lansdowne_Portrait)_-_Google_Art_Project.jpg|White
* [[Symbolism of white]]
</gallery>
* [[History of art]]
<gallery>
 
File:Paintings_from_the_Chauvet_cave_(museum_replica).jpg|White
[[Category:Colors]]
File:Ägyptischer_Maler_um_1360_v._Chr._001.jpg|White
File:Maler_der_Grabkammer_des_Thot_001.jpg|White
File:Chief_Vestal.jpg|White
File:Sodoma_-_Life_of_St_Benedict,_Scene_31_-_Benedict_Feeds_the_Monk_-_WGA21581.jpg|White
File:Bartolomeo_Passarotti_Pope_Pius_V.jpg|White
File:Ghent_Altarpiece_D_-_Adoration_of_the_Lamb_2.jpg|White
File:Transfiguration_by_fra_Angelico_(San_Marco_Cell_6).jpg|White
File:Mary_Queen_of_Scots_in_mourning.jpg|White
File:BasilikaOttobeurenHauptschiff02.JPG|White
File:Marie-Antoinette_par_Elisabeth_Vigée-Lebrun_-_1783.jpg|White
File:Gilbert_Stuart_-_George_Washington_(Lansdowne_Portrait)_-_Google_Art_Project.jpg|White
</gallery>
<gallery>
File:Paintings from the Chauvet cave (museum replica).jpg|White
File:Ägyptischer Maler um 1360 v. Chr. 001.jpg|White
File:Maler der Grabkammer des Thot 001.jpg|White
File:Chief Vestal.jpg|White
File:Sodoma - Life of St Benedict, Scene 31 - Benedict Feeds the Monk - WGA21581.jpg|White
File:Bartolomeo Passarotti Pope Pius V.jpg|White
File:Ghent Altarpiece D - Adoration of the Lamb 2.jpg|White
File:Transfiguration by fra Angelico (San Marco Cell 6).jpg|White
File:Mary Queen of Scots in mourning.jpg|White
File:BasilikaOttobeurenHauptschiff02.JPG|White
File:Marie-Antoinette par Elisabeth Vigée-Lebrun - 1783.jpg|White
File:Gilbert Stuart - George Washington (Lansdowne Portrait) - Google Art Project.jpg|White
</gallery>

Latest revision as of 11:47, 23 March 2025

White[edit]

File:Paintings from the Chauvet cave (museum replica).jpg
Replica of paintings from the Chauvet cave, showcasing the use of white.

White is the lightest color and is achromatic (having no hue). It is the color of fresh snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on television and computer screens is created by a mixture of red, blue, and green light.

History and Symbolism[edit]

White has been a significant color in art and culture throughout history. In ancient Egypt, white was associated with purity and sacredness. The

File:Ägyptischer Maler um 1360 v. Chr. 001.jpg
Ancient Egyptian painting using white.

Egyptians used white in their art to depict the sacred and the divine. In ancient Rome, white was worn by the Vestal Virgins as a symbol of purity. The

File:Chief Vestal.jpg
Chief Vestal wearing white.

Vestal Virgins were priestesses of Vesta, goddess of the hearth, and their white garments symbolized their commitment to chastity and service. During the Middle Ages, white was used in religious art to symbolize purity and holiness. The

File:Sodoma - Life of St Benedict, Scene 31 - Benedict Feeds the Monk - WGA21581.jpg
St. Benedict depicted in white.

color was often used to depict the robes of saints and angels.

Use in Art[edit]

White has been used extensively in art to create contrast and highlight other colors. In the Renaissance, artists like Fra Angelico used white to depict divine light and purity. The

File:Transfiguration by fra Angelico (San Marco Cell 6).jpg
Fra Angelico's use of white in the Transfiguration.

use of white in paintings helped to create a sense of depth and realism. In the Baroque period, artists like Bartolomeo Passarotti used white to highlight the features of important figures, such as Pope Pius V. The

File:Bartolomeo Passarotti Pope Pius V.jpg
Pope Pius V depicted in white.

use of white in clothing and drapery added a sense of grandeur and importance.

Cultural Significance[edit]

White is often associated with purity, innocence, and cleanliness. In many cultures, white is worn at weddings to symbolize the purity of the bride. In some Eastern cultures, however, white is associated with mourning and funerals.

In modern times, white is used in design and architecture to create a sense of space and simplicity. It is often used in minimalist designs to convey a sense of calm and order.

Related Pages[edit]