Meristems are specialized regions of plant tissue characterized by a high rate of cell division and an indeterminate growth capacity. These regions are responsible for increasing the girth and length of plant structures, giving rise to new primary and secondary tissues. Functionally, meristems facilitate the continuous growth of an organism by providing undifferentiated cells that differentiate into specific cell types. Different types of meristematic tissue are associated with specific growth patterns, such as the apical meristems, which are located at the tips of roots and shoots, or the lateral meristems, which facilitate girth expansion.