actin filament bundle of actin-based cell projection +
axon +
cell body fiber
dendrite +
dendritic filopodium
dendritic tree +
extracellular organelle +
filopodium +
gemmule
growth cone filopodium
growth cone lamellipodium
intracellular organelle +
kinocilium +
Lewy neurite
membrane-bounded organelle +
microvillus +
neuron projection branch point +
neuron projection cytoplasm +
neuron projection membrane +
neuron projection terminus +
neuron spine +
non-membrane-bounded organelle +
organellar ribosome +
organelle lumen +
organelle membrane contact site +
photoreceptor cell cilium +
postsynaptic specialization +
proximal neuron projection
rod spherule
stereocilia coupling link +
stereocilium +
An actin-based protrusion from the apical surface of auditory and vestibular hair cells and of neuromast cells. These protrusions are supported by a bundle of cross-linked actin filaments (an actin cable), oriented such that the plus (barbed) ends are at the tip of the protrusion, capped by a tip complex which bridges to the plasma. Bundles of stereocilia act as mechanosensory organelles.