Problemi am confused regarding the presence of valves in, Ask an Expert

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Problem:

I am confused regarding the presence of valves in the superior vena cava.

The superior vena cava does not possess valves unlike inferior vena cava, which possesses Eustachian Valve.

Required:

Question: Where are Haversian valves present?

Question: Aren't they present at the opening of caval i.e., superior vena cava.

Question: Why is it said that there is absence of valves in superior vena cava?

Any ideas? Or better yet, pointers to places where this has already been answered?

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Biology, Academics

Category:- Biology
Reference No.:- M91162830

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