Basal bodies are derived from the centrioles and are made up of microtubules by a complex process. It is a structure that extends out from the cells, at the end of the cilia and flagella. It is structurally similar to the centrioles containing microtubule triplets forming a hollow cylinder.

FUNCTION

Basal bodies are involved in the anchoring of microtubules within centrosomes (an organelle). They provide centrioles a strong base for scaffolding the axoneme microtubules. These microtubules in turn facilitate the movement of other organelles in the cell.

The basal bodies being the part of cilia and flagella help in other movements as well. Cilia are present in the upper respiratory tract and help remove the mucous and sputum when cilia beat. Flagella are also present in many cells, one example is the sperm cell which helps them to swim (move).

Basal body production is regulated by nucleotide-binding domain of gamma tubulin.