Trabecular veins
You don't need to be Editor-In-Chief to add or edit content to WikiDoc. You can begin to add to or edit text on this WikiDoc page by clicking on the edit button at the top of this page. Next enter or edit the information that you would like to appear here. Once you are done editing, scroll down and click the Save page button at the bottom of the page.
| Vein: Trabecular veins | |
|---|---|
 | |
| Section of the spleen, showing the termination of the small bloodvessels. | |
 | |
| Transverse section of the spleen, showing the trabecular tissue and the splenic vein and its tributaries. | |
| Gray's | subject #278 1286 |
| Drains from | sinus |
| Drains to | Splenic vein |
| Artery | Trabecular arteries |
The trabecular veins are the largest veins inside the spleen. It drains the blood collected in the sinuses of the pulp.
Details
The blood is collected from the interstices of the tissue by the rootlets of the veins, which begin much in the same way as the arteries end.
The connective-tissue corpuscles of the pulp arrange themselves in rows, in such a way as to form an elongated space or sinus.
They become elongated and spindle-shaped, and overlap each other at their extremities, and thus form a sort of endothelial lining of the path or sinus, which is the radicle of a vein.
On the outer surfaces of these cells are seen delicate transverse lines or markings, which are due to minute elastic fibrillæ arranged in a circular manner around the sinus.
Thus the channel obtains an external investment, and gradually becomes converted into a small vein, which after a short course acquires a coat of ordinary connective tissue, lined by a layer of flattened epithelial cells which are continuous with the supporting cells of the pulp.
The smaller veins unite to form larger ones; these do not accompany the arteries, but soon enter the trabecular sheaths of the capsule, and by their junction form six or more branches, which emerge from the hilum, and, uniting, constitute the lienal vein, the largest radicle of the portal vein.
External links
- Histology at BU 07704loa - "Lymphoid Tissues and Organs: spleen, central artery and trabecular vein"
- Slide at udel.edu
- Swiss embryology (from UL, UB, and UF) qblood/lymphat06 (See figure #16)
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. Template:Circulatory-stub
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
