- mechanosensory lateral line system development
The process whose specific outcome is the progression of the mechanosensory lateral line system over time, from its formation to the mature structure. The mechanosensory lateral line system consists of small sensory patches (neuromasts) located superficially on the skin or just under the skin in fluid-filled canals on the head and body of all fishes and most amphibians. The neuromasts are innervated by several lateral line nerves, which project primarily to the hindbrain. The mechanosensory lateral line system is stimulated by local water displacements and vibrations, and detects propulsion of the fish through the water, as well as facilitating shoaling, prey capture, and predator and obstacle avoidance.
- somatic motor neuron fate commitment
The commitment of unspecified motor neurons to specific motor neuron cell along the anterior-posterior axis of the spinal cord and their capacity to differentiate into specific motor neurons.
- stereocilium bundle
A bundle of cross-linked stereocilia, arranged around a kinocilium on the apical surface of a sensory hair cell (e.g. a neuromast, auditory or vestibular hair cell). Stereocilium bundles act as mechanosensory organelles by responding to fluid motion or fluid pressure changes.
- lateral motor column neuron differentiation
The process in which differentiating motor neurons in the neural tube acquire the specialized structural and/or functional features of lateral motor column neurons. Lateral motor column neurons are generated only on limb levels and send axons into the limb mesenchyme. Differentiation includes the processes involved in commitment of a cell to a specific fate.