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What external structure of the heart marks the position of the junction between the atria and the ventricles?
coronary sulcus
What are the valves between the atria and the ventricles called?
Atrio-ventricular valves
What difference atria and ventricles fetal pig?
the difference between the ventricles and the atria is that the ventricles are thicker
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.
Flaps of connective tissue called valves are located between the atria and the ventricles?
TRUE
What is the chamber of the heart called?
the atria
When atria relax ventricles do what?
When relaxed, the atria expand, and then the ventricles contract.
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.
Are valves located between the atria and the ventricles?
Yes, atrioventricular valves are located between the atria and the ventricles in the heart. These valves prevent blood from flowing back into the atria when the ventricles contract. The two main atrioventricular valves are the tricuspid valve on the right side and the mitral valve on the left side.
Valves separating atria and ventricles are together called the?
atrioventricular
Do atria contract before the ventricles?
Yes, atria contracts before the ventricles.
What are the four chambers in our heart called?
The four chambers of the heart are the right and left atria, and the right and left ventricles. The atria are the upper chambers, and the ventricles the lower.
