Dictionary » A » Atrium

Atrium

Atrium

(Science: anatomy) a chamber, used in anatomical nomenclature to designate a chamber affording entrance to another structure or organ. Usually used alone to designate an atrium of the heart.

Origin: L., gr. Atrion = hall Any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart).The central area in a building; open to the sky.A chamber found in the heart that receives deoxygenated blood from the body.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


heart failure

... the left cardiac output. ) shunts unoxygenated blood directly from the right to the left side of the circulation. causes regurgitation between atrium and ventricle. reduces the oxygen carrying capacity of the blood. is a symptom, not a cause. is not associated with left sided heart failure. ...

See entire post
by zak
Fri Nov 22, 2013 6:44 pm
 
Forum: Human Biology
Topic: heart failure
Replies: 2
Views: 2119

what causes us to breathe

... the left cardiac output. ) shunts unoxygenated blood directly from the right to the left side of the circulation. causes regurgitation between atrium and ventricle. reduces the oxygen carrying capacity of the blood. is a symptom, not a cause. is not associated with left sided heart failure. ...

See entire post
by zak
Thu Nov 21, 2013 10:20 am
 
Forum: Human Biology
Topic: what causes us to breathe
Replies: 23
Views: 13641

How does blood is circulated in amphibians?

... a humans heart, but it is separated enough for the blood not to get mixed. This is done by the arrangement of the frogs heart, where the right atrium dips downward into the ventricle. Which causes oxygen-poor blood that is entering the right atrium to pass all the way down to the bottom of ...

See entire post
by suzidoc8
Mon Jul 23, 2012 2:00 pm
 
Forum: Physiology
Topic: How does blood is circulated in amphibians?
Replies: 4
Views: 7466

Heart : Difference between tricuspid and bicuspid valves ?

Hi, at a guess, the tricuspid valve (separating the right atrium from the right ventriclel) has three cusps (flaps) simply because the diameter of the right side of the heart chambers are greater than the diameter of of the chambers on the left hand side, ...

See entire post
by Julie5
Sun Oct 24, 2010 10:45 am
 
Forum: Human Biology
Topic: Heart : Difference between tricuspid and bicuspid valves ?
Replies: 3
Views: 30962

Re: Why bronchial circ. dumps deoxygenated blood in2 L. atrium?

Mith, I've explored that option. There are some that believe that it is a remnant of the ductus arteriosus, but animals like opossums never have an ductus arteriosus and have the same setup for venous return...

See entire post
by phuturephysician
Sun Feb 01, 2009 8:47 pm
 
Forum: Human Biology
Topic: Why bronchial circ. dumps deoxygenated blood in2 L. atrium?
Replies: 8
Views: 7536
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 17,076 times. 
What links here | Related changes | Permanent link