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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
What is a AV junction?
The AV junction, or atrioventricular junction, is a critical area in the heart where electrical signals are transmitted between the atria and ventricles. It consists of the atrioventricular node (AV node) and the surrounding conductive tissue, playing a vital role in coordinating the timing of heartbeats. The AV junction ensures that the atria contract before the ventricles, allowing for efficient blood flow through the heart. Dysfunction in this area can lead to various types of heart block or arrhythmias.
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
What does the atrioventricular valve do?
The atrioventricular valves are two heart valves that allow for the transportation of blood from the atria to the ventricles of the heart. Its function is to prevent the return of blood to the atrium.
