X’ is a flap-like structure present in the heart between the atrium and ventricle and also in the veins.
’X’ is absent in the arteries. It allows the flow of blood in one direction only. Identify ‘X’.
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Answer:
lmao I had thr same question
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Answer:
seminal Valve
Explanation:
because it prevented to mixing of oxygenated and dioxyginated blood into the heart
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