Definition of Crista acustica
Crista acustica (also Siebold's organ, or crista acoustica) is a part of the hearing organ (tibial organ) in some insects (e.g. grasshoppers, crickets, katydids). It is a collection of sensory cells that form a crest (hence the name) on top of the hollow tube (the foreleg trachea) behind the hearing membrane (tympanum) on the legs of the insect.
The crista acustica is a transition from the intermedia organ (from the midline to the periphery), together which compose the tibial hearing organ (as opposed to the tympanal hearing organ).
Related terms
Tympanum (anatomy)
The tympanum is an external hearing structure in animals such as mammals, birds, some…
Sensorineural hearing loss
Sensorineural hearing loss (SNHL) is a type of hearing loss in which the root cause lies…
Waardenburg syndrome
Waardenburg syndrome is a group of rare genetic conditions characterised by at least…
Universal neonatal hearing screening
Universal neonatal hearing screening (UNHS), which is part of early hearing detection…
Hensen's cell
Hensen's cells are a layer of tall supporting cells around the outer hair cells (OHC) in…
Ear
In vertebrates, an ear is the organ that enables hearing and (in mammals) body balance…
Organ of Corti
In anatomy and physiology, the organ of Corti or spiral organ is the receptor organ for…
Hearing
Hearing, or auditory perception, is the ability to perceive sounds through an organ…
Auditosensory cortex
The auditosensory cortex is the part of the auditory system that is associated with the…
Frequently asked questions
What is Crista acustica?
Crista acustica (also Siebold's organ, or crista acoustica) is a part of the hearing organ (tibial organ) in some insects (e.g. grasshoppers, crickets, katydids).