The cells in cardiac tissue are branched and connected to each other, which helps them pass signals quickly so the whole heart can contract at the same time. These cells have one or two nuclei and are linked by special connections called intercalated discs. These discs allow the cells to communicate and work together smoothly, like teammates passing a signal during a relay race.

Cardiac tissue is involuntary, meaning we don’t control it with our thoughts. It works non-stop, day and night, to keep us alive. In short, cardiac tissue is the strong, coordinated muscle that keeps the heart beating and the blood flowing.