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What makes the valves between atriums open and close?
There are no valves between the atria. The valves between the atria and ventricles close when the ventricles contract.
Which valves lie between the atria and ventricles and prevent bloof from flowing back into the atria when the venttricals contract?
semilunar valves
What difference atria and ventricles fetal pig?
the difference between the ventricles and the atria is that the ventricles are thicker
In the fetus the opening between the two atria is called?
The Foramen Ovale or Oval Window it's the opening between the two Atria, window is covered by a flap of tissue that is a vavle.
What two components of the conduction system constitute the only electrical link between the atria and the ventricles?
The atrioventricular node and the bundle of HIS are the electrical conduction link between the atria and the ventricles.
what does atrioventricular valve do?
The atrioventricular valve acts as a control device between the atria and the ventricles. They prevent blood from moving back into the atria during contraction.
What is the difference between atria and atrium?
The term "atria" refers to the plural form of the word "atrium," which is a chamber of the heart that receives blood from the veins. The atria are the upper chambers of the heart, while the ventricles are the lower chambers responsible for pumping blood out of the heart.
What is the junction between atria and ventricles called?
Annulus fibrosus cordis
What are the valves between the atria and the ventricles called?
Atrio-ventricular valves
Are auricles extensions of the atria or the ventricle?
The are extentions of the Atria.
What is the downstairs chamber in the heart?
the atria
What are the 4 chambers and 4 values of the heart?
4 chambers are 1. right atria 2.right ventricle 3.left atria 4 left ventricle 4 values are 1.tricuspid valves in between the right atria and right ventricle 2.mitral valve or bicuspid valves in between the left atria and left ventricle 3.Aortic valves 4.pulmonary valve
