Cells in this organ have spectrin-rich domains at the apex of folds in the plasma membrane in a structure called the transitional junction.
Cells in this organ have spectrin-rich domains at the apex of folds in the plasma membrane in a structure called the transitional junction. Irregular function of this organ can be treated with Atenolol, which is a beta-blocker. Coupling between this organ's cells occurs through their intercalated discs. The Frank-Starling law can be used to describe the mechanical behavior of this organ. Depolarization in this organ is indicated by the QRS complex on readouts from EKGs. This organ's activity can be divided into the diastole and systole, during which it contracts. The aorta ascends from, for 10 points, which organ's left ventricle? 
Cells in this organ have spectrin-rich domains at the apex of folds in the plasma membrane in a structure called the transitional junction.
heart