What is the fluid circulating within lymphatic vessels?

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Multiple Choice

What is the fluid circulating within lymphatic vessels?

Explanation:
Lymph is the fluid circulating within lymphatic vessels. It starts as interstitial fluid that leaks from capillaries into surrounding tissues; when it enters lymphatic capillaries, it becomes lymph and travels through a network of vessels and nodes, eventually returning to the bloodstream via the thoracic duct and other channels. This distinguishes it from blood plasma, which stays inside blood vessels; interstitial fluid, which remains in tissue spaces unless taken up by lymphatics; and cerebrospinal fluid, which circulates in the brain and spinal cord.

Lymph is the fluid circulating within lymphatic vessels. It starts as interstitial fluid that leaks from capillaries into surrounding tissues; when it enters lymphatic capillaries, it becomes lymph and travels through a network of vessels and nodes, eventually returning to the bloodstream via the thoracic duct and other channels. This distinguishes it from blood plasma, which stays inside blood vessels; interstitial fluid, which remains in tissue spaces unless taken up by lymphatics; and cerebrospinal fluid, which circulates in the brain and spinal cord.

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