lymph (redirected from periarteriolar lymph sheath (PALS))

lymph

Pale fluid that bathes tissues, maintaining fluid balance and removing bacteria. It enters the blood system at a vein under the collarbone that it reaches via channels and ducts, being driven through them mainly by surrounding muscle activity. The lymphatic organs (spleen and thymus) and lymph nodes filter out bacteria and other particles the lymph takes up from body tissues. Lymph contains lymphocytes and macrophages, the primary cells of the immune system. See also lymphatic system.

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lymph

the almost colourless fluid, containing chiefly white blood cells, that is collected from the tissues of the body and transported in the lymphatic system

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lymph [limf]

(histology)

The colorless fluid which circulates through the vessels of the lymphatic system.