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cisterna chyli
origin of thoracic duct and saclike reservoir for lymph collection
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hilum
depression where vessels and nerves enter spleen
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lymphatic duct
channel conducting lymph, referring chiefly to right lymphatic duct and left lymphatic or thoracic duct
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lymphatic glands (nodes)
gland-like masses of lymphatic tissue varying in size from dots to bean-sized bodies, identified by their locations along course of lymphatic vessels
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lymphatic vessel
channel for conveying lymph
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lymph follicle
saclike collector of lymphoid substances, chiefly beneath mucous surfaces
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sinusoids
sinuslike capillaries with specialized function
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spleen
largest lymphoid system structure, flattened, oval-shaped, glandlike organ located in upper left side of abdominal cavity
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splenic pulp
- white: sheath of lymphatic tissue that surrounds arteries of spleen
- red: lymphatic tissue permeated with sinusoids filled with blood
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thoracic duct
left lymphatic duct draining left side of body above and entire body below diaphragm
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thymus gland
grayish-pink structure of lymph tissue in mediastinum that has function in immune system
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tonsils
three pairs of small, round masses of lymphoid tissue
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