Striated involuntary muscle tissue found in the heart is smooth muscle skeletal muscle dense regular

Ah, the fascinating world of muscle tissue! The correct answer is cardiac muscle, which is a type of striated involuntary muscle specifically found in the heart. This unique muscle contracts rhythmically and does not tire, pumping blood throughout your body. It's like a tiny drummer keeping the beat for your circulatory system! For a fun twist, did you know that the heart has its own intrinsic pacemaker called the Sinoatrial (SA) node? This little cluster of cells dictates the heart's rhythm, ensuring that your blood gets pumped effectively without needing a signal from the brain. It’s one of nature's marvelous little wonders!