C. Platelet
d. neuron
- Opening of inferior vena cava is guarded
by
a. bicuspid valve
b. tricuspid valve
c. Eustachian valve
d. Thebesian valve
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0
Answer:
All the openings in right atrium are guarded by valves to prevent back flow of blood. In man, the right auricle receive blood from a precaval (superior vena cava) and a postcaval (inferior vena cava). The opening of postcaval into atrium is guarded by the Eustachian valves.
So, the correct answer is option D.
Explanation:
Answered by
1
Answer:
opening of inferior vena cava is guarded by Eustachian valve
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