Cardiomyocytes Form a Functional Syncytium by Being Electrically Coupled to One

Question

Cardiomyocytes form a functional syncytium by being electrically coupled to one another at the
A) T-tubules
B) Sarcolemm a
C) Sarcoplasmic reticulum
D) Intercalated disks
E) Z disks

Accepted Answer

Intercalated disks are specialized structures in cardiomyocytes that contain gap junctions, allowing for direct electrical coupling between cells. This enables the rapid and coordinated spread of action potentials across the heart, essential for synchronized contraction.