Question and answer
The muscle valve which encircles tubule organs to prevent backflow is called ____. cecum duodenum pharynx sphincter glottis
sphincter. Circular layer forms sphincters which act as valves to prevent backflow and prevents the entry of air.
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Expert answered|migzptz|Points 6753|
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Asked 10/3/2012 9:06:29 AM
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Which lymphoid organ has red pulps filled with blood instead of lymph? Answer lymph nodes thymus bone marrow spleen kidneys
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Updated 5/27/2018 11:49:26 PM
1 Answer/Comment
Spleen has red pulps filled with blood instead of lymph.
Added 5/27/2018 11:49:26 PM
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Confirmed by jeifunk [5/28/2018 1:46:50 AM]
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