Answer
The functions of the fibrous skeleton are structural support, anchors cardiocytes, electrical insulation, and aids in refilling the heart.
Work Step by Step
The fibrous skeleton provides structural support for the heart, especially around the valves.
The fibrous skeleton anchors the cardiocytes and gives them something to pull against.
The fibrous skeleton serves as insulation from electrical activity. This helps with the timing and coordination of the electrical signals.
The fibrous skeleton aids in refilling the heart with blood by elastically recoiling after each heart beat.
