<Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> A cilium (Latin for eyelash; the plural is cilia) is an organelle found in eukaryotic cells . Cilia are slender protuberances that project from the much larger cell body . Cilium can measure up to 20 μm and have a diameter around 0.25 μm . </P> <P> There are two types of cilia: motile cilia and nonmotile, or primary cilia, which typically serve as sensory organelles . In eukaryotes, motile cilia and flagella together make up a group of organelles known as undulipodia . Eukaryotic cilia are structurally identical to eukaryotic flagella, although distinctions are sometimes made according to function and / or length . Biologists have various ideas about how the various flagella may have evolved . </P> <P> Cilia can be divided into primary and motile forms . </P>

What type of cells have cilia and flagella