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LYMPH

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Originally appearing in Volume V17, Page 162 of the 1911 Encyclopedia Britannica.
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LYMPH and LYMPH FORMATION. Lying See also:

close to the See also:blood-vessels of a See also:limb or See also:organ a further set of vessels may be observed. They are very See also:pale in See also:colour, often almost trans-See also:parent and very thin-walled. Hence they are frequently difficult to find and dissect. These are the lymphatic vessels, and they are found to be returning a fluid from the tissues to the blood-stream. When traced back to the tissues they are seen to See also:divide and ultimately to See also:form See also:minute anastomosing tubules, the lymph capillaries. The capillaries finally terminate in the spaces between the structures of the See also:tissue, but whether their See also:free ends are closed or are in open communication with the tissue spaces is still undecided. The study of their development shows that they grow into the tissue as a closed See also:system of minute tubes, which indicates that in all See also:probability they remain permanently closed. If we trace the lymphatic vessels towards the See also:thorax we find that in some See also:part of their course they terminate in structures known as lymphatic glands. From these again fresh lymphatic vessels arise which carry the fluid towards the See also:main lymph-See also:vessel, the thoracic duct. This runs up the posterior See also:wall of the thorax close to the aorta, and finally opens into the junction of the See also:internal jugular and See also:left subclavian See also:veins.

End of Article: LYMPH

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