most probable answer is "APEX"
the heart
left and right atrium left and right ventricles.
the interventricular septum, it separates the two ventricles
The heart.
the left and right atria and the left and right ventricles
The septum; it's a muscle that seperates your right and left ventricles.
The human heart has four chambers.The upper two chambers are called Atria and the lower two are called Ventricles
Interventricular groove or Sulcus
Timothy Bottoms's birth name is Timothy James Bottoms.
Io Bottoms's birth name is Io Cecilia Bottoms.
The heart has two contraction cycles, one is the systole and the other one is the diasole. Both are fired by one impulse from the Cranial Nerve X. The delay required for the ventricles to contract are a result of the atrrioventricular node that pauses the impule until the ventricles are filled with blood.
Georgia