Red pulp
5010912
188996810
2008-02-04T10:00:11Z
Malcolma
320496
cat
{{Infobox Anatomy |
Name = {{PAGENAME}} |
Latin = pulpa splenica |
GraySubject = 278 |
GrayPage = 1284 |
Image = Gray1191.png |
Caption = Transverse section of a portion of the [[spleen]]. (Spleen pulp labeled at lower right.) |
Image2 = Illu spleen.jpg |
Caption2 = Spleen |
System = |
Precursor = |
MeshName = |
MeshNumber = |
DorlandsPre = p_41 |
DorlandsSuf = 12679479 |
}}
{{expert-subject|Anatomy}}
The '''red pulp''' (also called '''splenic pulp''', but should not be confused with [[white pulp]]) is a soft mass of a dark reddish-brown color, resembling [[grumous]] blood
It consists of a fine [[reticulum]] of fibers, continuous with those of the [[splenic trabeculae]], to which are applied flat, branching cells.
Modern texts usually divide the space of the red pulp into [[cords of Billroth]] and [[sinusoids]].
==Cells found in red pulp==
The meshes of the reticulum are filled with [[blood]]:
* The ''[[white corpuscles]]'' are found to be in larger proportion than they are in ordinary blood.
* Large rounded cells, termed ''[[splenic cells]]'', are also seen; these are capable of ameboid movement, and often contain pigment and red-blood corpuscles in their interior.
* The ''cells of the reticulum'' each possess a round or oval nucleus, and like the splenic cells, they may contain pigment granules in their cytoplasm; they do not stain deeply with carmine, and in this respect differ from the cells of the [[Malpighian bodies]].
* In the young spleen, ''[[giant cells]]'' may also be found, each containing numerous [[cell nucleus|nuclei]] or one compound nucleus.
* Nucleated ''[[red-blood corpuscles]]'' have also been found in the spleen of young animals.
==See also==
* [[spleen]]
* [[white pulp]]
* [[marginal zone]]
==External links==
* {{AnatomyAtlasesMicroscopic|09|175}} - "Spleen: Red Pulp"
* {{eMedicineDictionary|red+pulp}}
* [http://owensboro.kctcs.edu/gcaplan/anat2/notes/Image426.gif Diagram at kctcs.edu]
* [http://www.apsu.edu/thompsonj/Anatomy%20&%20Physiology/2020/2020%20Exam%20Reviews/Exam%202/CH20%20Lymphatic%20Organs%20&%20Pathology%20Terms.htm Description and diagram at apsu.edu]
{{anatomy-stub}}
{{Gray's}}
{{Lymphatic system}}
[[Category:Hematology]]