True or False: Creatine Kinase (CK) is an enzyme primarily found in the heart.

Creatine Kinase (CK) is an enzyme that is indeed found in several tissues in the body, not just the heart. It is primarily located in three main types of tissue: skeletal muscle, the brain, and the heart. CK plays a crucial role in energy metabolism, especially in muscular and neuronal tissues, where it helps to replenish ATP, the main energy carrier in cells.

While it is true that CK is notably present in heart tissue, stating that it is primarily found there would be misleading. The enzyme's levels can significantly vary in different tissues, and skeletal muscle contains a large amount of this enzyme. In clinical practice, measuring CK levels is often useful for assessing muscle damage, including conditions affecting both skeletal muscle and the heart.

Given this understanding, the statement should be considered false, as CK is not exclusively or primarily located in the heart but is present in multiple tissues including muscle and brain, making the answer appropriate.