脾髄
WordNet
- remove the pulp from, as from a fruit
- a soft moist part of a fruit (同)flesh
- a mixture of cellulose fibers
- reduce to pulp; "pulp fruit"; "pulp wood"
- any soft or soggy mass; "he pounded it to a pulp" (同)mush
- an inexpensive magazine printed on poor quality paper (同)pulp magazine
- the soft inner part of a tooth
- of or relating to the spleen (同)splenetic, lienal
- 100 puls equal 1 afghani in Afghanistan
PrepTutorEJDIC
- 〈U〉(果実・野菜などの)果肉 / 〈U〉髄質(骨髄・歯髄など) / 〈U〉(製紙原料の)パルプ / 〈U〉《時にa~》どろどろしたもの / 《しばしば複数形で》(粗末な紙にきわもの記事を印刷した)低俗雑誌 / …‘を'パルプにする;…‘を'どろどろにする
- 脾臓(ひぞう)の,脾臓を冒す
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/11/23 22:39:45」(JST)
[Wiki en表示]
| Red pulp |
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| Transverse section of a portion of the spleen. (Spleen pulp labeled at lower right.) |
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| Spleen |
| Latin |
pulpa splenica |
| Gray's |
subject #278 1284 |
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This article needs attention from an expert in Anatomy. Please add a reason or a talk parameter to this template to explain the issue with the article. WikiProject Anatomy may be able to help recruit an expert. (November 2008) |
The red pulp of the spleen is composed of connective tissue known as the cords of Billroth and many splenic sinuses that are engorged with blood, giving it a red color.[1][2] Its primary function is to filter the blood of antigens, microorganisms, and defective or worn-out red blood cells.[3]
The spleen is made of red pulp and white pulp, separated by the marginal zone; 76-79% of a normal spleen is red pulp.[4] Unlike white pulp, which mainly contains lymphocytes such as T cells, red pulp is made up of several different types of blood cells, including platelets, granulocytes, red blood cells, and plasma.[1]
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Contents
- 1 Sinusoids
- 2 Cells found in red pulp
- 3 Diseases
- 4 References
- 5 External links
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Sinusoids
The splenic sinuses of the spleen, also known as sinusoids, are wide vessels that drain into trabecular veins. Gaps in the endothelium lining the sinusoids mechanically filter blood cells as they enter the spleen. Worn-out or abnormal red cells attempting to squeeze through the narrow intercellular spaces become badly damaged, and are subsequently devoured by macrophages in the red pulp.[5] In addition to aged red blood cells, the sinusoids also filter out particles that could clutter up the bloodstream, such as nuclear remnants or denatured hemoglobin.
Cells found in red pulp
Red pulp consists of a dense network of fine reticular fiber, continuous with those of the splenic trabeculae, to which are applied flat, branching cells. The meshes of the reticulum are filled with blood:
- 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 corpuscles.
- In the young spleen, macrophages may also be found, each containing numerous nuclei or one compound nucleus.
- Nucleated red-blood corpuscles have also been found in the spleen of young animals.
Diseases
In lymphoid leukemia, the white pulp of the spleen hypertrophies and the red pulp shrinks.[4] In some cases the white pulp can swell to 50% of the total volume of the spleen.[6] In myeloid leukemia, the white pulp atrophies and the red pulp expands.[4]
References
- ^ a b Luiz Carlos Junqueira and José Carneiro (2005). Basic histology: text & atlas. McGraw-Hill Professional. pp. 274–277. ISBN 0-07-144091-7. http://books.google.com/books?id=lYHBfPfnOx0C&pg=PA274.
- ^ Michael Schuenke, Erik Schulte, Udo Schumacher, Lawrence M. Ross, Edward D. Lamperti (2006). Atlas of anatomy: neck and internal organs. Thieme. pp. 219. ISBN 1-58890-360-5. http://books.google.com/books?id=5iYCOR33aM8C&pg=PA219.
- ^ Victor P. Eroschenko, Mariano S. H. di Fiore (2008). Di Fiore's atlas of histology with functional correlations. Lippincott Williams & Wilkins. pp. 208. ISBN 0-7817-7057-2. http://books.google.com/books?id=JZoTjdNSlpQC&pg=PA208.
- ^ a b c Carl Pochedly, Richard H. Sills, Allen D. Schwartz (1989). Disorders of the spleen: pathophysiology and management. Informa Health Care. pp. 7–15. ISBN 0-8247-7933-9. http://books.google.com/books?id=t3-Kl13Fd9EC&pg=PA7.
- ^ Cormack, David H. (2001). Essential histology. Lippincott Williams & Wilkins. pp. 169–170. ISBN 0-7817-1668-3. http://books.google.com/books?id=VRWdBGTzNQgC&pg=PA168.
- ^ Jan Klein, Václav Hořejší (1997). Immunology. Wiley-Blackwell. pp. 30. ISBN 0-632-05468-9. http://books.google.com/books?id=NjMWP6HiSacC&pg=PA30.
External links
- Anatomy Atlases - Microscopic Anatomy, plate 09.175 - "Spleen: Red Pulp"
- red+pulp at eMedicine Dictionary
- Diagram at kctcs.edu
- Description and diagram at apsu.edu
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
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Lymphoid system (TA A13.1–2, TH H3.10, GA 8 and 9)
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| Primary lymphoid organs |
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Bone marrow
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Thymus
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- Cortex
- Medulla
- Hassall's corpuscles
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| Secondary lymphoid organs |
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Spleen
(process blood)
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- structural: Hilum
- Trabeculae
- Diaphragmatic surface of spleen
- Visceral surface of spleen
- Red pulp
- Cords of Billroth
- Marginal zone
- White pulp
- Periarteriolar lymphoid sheaths
- Germinal center
- blood flow: Trabecular arteries
- Trabecular veins
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Tonsils/Waldeyer's
tonsillar ring
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- Palatine
- Lingual
- Pharyngeal
- Tubal
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Lymph nodes
(process
extracellular fluid) |
- lymph flow: Afferent lymph vessels
- Cortical sinuses
- Medullary sinuses
- Efferent lymph vessels
- T cells: High endothelial venules
- B cells: Primary follicle/Germinal center
- Mantle zone
- Marginal zone
- layers: Capsule/Trabeculae
- Subcapsular sinus
- Cortex
- Paracortex
- Medulla (Medullary cord)
- Hilum
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MALT
(process mucosa)
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- GALT
- Peyer's patch
- Germinal center
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anat(h, u, t, a, l)/phys/devp
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UpToDate Contents
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English Journal
- Molecular and pathological investigations of EHV-1 and EHV-4 infections in horses in Turkey.
- Turan N, Yildirim F, Altan E, Sennazli G, Gurel A, Diallo I, Yilmaz H.SourceUniversity of Istanbul, Veterinary Faculty, Department of Virology, Avcilar, Istanbul, Turkey.
- Research in veterinary science.Res Vet Sci.2012 Dec;93(3):1504-7. doi: 10.1016/j.rvsc.2012.01.019. Epub 2012 Mar 7.
- The aim of the present study was to investigate abortion storms that occurred in the Marmara region of Turkey in 2008-2009 using a real-time PCR. Two aborted foetuses were necropsied and histo-pathological findings reported herein. Ten lungs, 3 brains and one nasal swab from 10 aborted foetuses, 6 n
- PMID 22401978
Japanese Journal
Related Links
- Medical Dictionary splenic pulp n. The soft, reddish brown substance that fills the sinuses of the spleen. Also called red pulp. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin ...
- splenic pulp n. The soft, reddish brown substance that fills the sinuses of the spleen. Also called red pulp. pulp [pulp] any soft, juicy animal or vegetable tissue. adj., adj pul´pal. dental pulp the richly vascularized and innervated ...
Related Pictures
★リンクテーブル★
[★]
- 英
- splenic pulp
- ラ
- pulpa splenica
- 関
- 脾臓
[★]
[★]
- 関
- spleen