What is the function of the Axoneme?

The axoneme is the structural core of cilia and flagella, consisting of a specific arrangement of microtubules in a "9+2" pattern—nine doublet microtubules surrounding two central singlet microtubules. Its primary function is to facilitate movement; the coordinated beating of the axoneme enables the propulsion of cells, such as sperm, or the movement of fluids across cell surfaces. Additionally, the axoneme plays a critical role in signaling pathways and cellular organization.