| Histology of hemal nodes of the water buffalo (Bos bubalus). | |
| | |
MedLine Citation:
|
PMID: 20387076 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Hemal nodes are independent lymphoid organs found in various mammals but are ignored by most immunologists. They seem to play a role in defense against blood-borne infections in some species. The structure of the hemal node has been described in various species but, so far, not in the water buffalo. Specimens were obtained from ten clinically healthy male animals (five calves: 2-3 months old; five bulls: 2-8 years old). Six hemal nodes were obtained from each animal from the mesenteric and perirectal region. The samples were studied by light and transmission electron microscopy. The hemal nodes are bean-shaped or spherical, with one hilus through which the hilus arteries and nerves enter the node and from which veins and lymphatics leave it. The buffalo hemal node has a thin capsule of connective tissue and a few smooth muscle cells. Trabeculae extend from the capsule partially dividing the parenchyma. Subcapsular and trabecular blood sinuses are present. The parenchyma is composed of irregular lymphoid cords rich in erythrocytes, macrophages, and plasma cells and is separated by blood sinuses of variable size engorged with blood. These blood sinuses drain into the trabecular sinuses and then into the subcapsular sinus. In calves, the size of the lymphoid cords is larger than that in adult bulls. Buffalo hemal nodes can be classified as typical hemal nodes, because they are definitely different from hemolymph nodes in other species. They may play a role in filtering the blood. |
| | |
Authors:
|
Mohamed Zidan; Reinhard Pabst |
Related Documents
:
|
3428386 - Sem studies on the functional morphology of the rabbit ciliary process vasculature. 3290406 - Multiple ex vivo organ preservation with warm whole blood. 19870786 - The passage of rabbit virulent type iii pneumococci from the respiratory tract of rabbi... 1348176 - Innervation of the endolymphatic sac. 17994316 - Pilot study on the influence of liver blood flow and cardiac output on the clearance of... 16601816 - Using of electrochemical methods for studying of metallothionein content in the human b... |
Publication Detail:
|
Type: Journal Article Date: 2010-04-13 |
Journal Detail:
|
Title: Cell and tissue research Volume: 340 ISSN: 1432-0878 ISO Abbreviation: Cell Tissue Res. Publication Date: 2010 Jun |
Date Detail:
|
Created Date: 2010-06-09 Completed Date: 2010-09-01 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0417625 Medline TA: Cell Tissue Res Country: Germany |
Other Details:
|
Languages: eng Pagination: 491-6 Citation Subset: IM |
Affiliation:
|
Department of Histology and Cytology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Buffaloes / anatomy & histology* Lymph Nodes / cytology*, ultrastructure |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Smell with new neurons.
Next Document: GTPases RhoA and Rac1 are important for amelogenin and DSPP expression during differentiation of ame...