Talk:Inferior vena cava

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"Too Technical" Warning

I feel that the "too technical" warning on this artical is not necessary. If anyone else agrees, whatsay you to removing it? — Preceding unsigned comment added by 24.145.161.149 (talk • contribs) 03:41, 12 May 2005 (UTC)[reply]

valve at the RA - IVC junction

I didn't put the original reference to the valve into the article, but after an edit removed it, I checked Netter, "Atlas of Human Anatomy", and sure enough he shows a valve at or very near the connection, labeled "Valve (Eustachian) of the inferior vena cava". Therefore I've put it back in. -R. S. Shaw 00:24, 2 August 2005 (UTC)[reply]

"The eustachian valve is an embryologic remnant of the valve of the inferior vena cava."

"During fetal life, the eustachian valve directs oxygen-rich blood from the inferior vena cava (IVC) toward the foramen ovale and away from the tricuspid valve. After the closure of the foramen ovale, it does not have a specific function. In echocardiographic examinations, the eustachian valve may appear as a thin flap originating from the orifice of the IVC, or it may be totally absent."

http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=140300 Tex Heart Inst J 2002;29:336–8

I think valve is an overstatement-- it is flap... or non-existant.

Eustashian valve

Obsolete term for the Valvula venae cavae inferiore, an endocardial fold extending from the anterior inferior margin of the inferior vena cava to the anterior part of the limbus fossa ovalis.

http://www.whonamedit.com/synd.cfm/1462.html

Looks like the article will need some clarification. I think valve doesn't describe the structure... 'eustachian valve' is a misnomer (as it has no function according the Tex Heart Inst J article) and it definitely isn't anything like the valves in the heart. The reason I took out the other part is I don't think it makes sense to describe the IVC backward... flow is distal to proximal. Nephron 00:55, 2 August 2005 (UTC)[reply]

Your edits have much improved the article. -R. S. Shaw 03:43, 3 August 2005 (UTC)[reply]

Human distinction?

User Gmelli changed heart to human heart, but isn't the inferior vena cava is present in all mammals? The cardiovascular system article suggests this, but I wanted to ask before reverting the edit. --Beefyt 18:20, 22 August 2006 (UTC)[reply]

Hi Beefyt! Yes, the inferior vena cava is present in all mammals in a similar configuration. Thanks! Bibeyjj (talk) 14:46, 22 November 2020 (UTC)[reply]

Two separate openings (sup. & inf.) into atrium?

The picture seems to show (and ditto a few other pictures I've seen) that each of the sup. and inf. vena cava enter the heart through separate openings into the r. atrium. Is that correct? UnderEducatedGeezer (talk) 23:28, 20 August 2023 (UTC)[reply]