See Also: spiral organ(medicine)
Dizziness(medicine)
Dizziness(health)
Dizziness, pre-syncopal(health)
Dizziness, anxiety as a cause of(health)
dizziness, pre-syncopal(medicine)
Dells Area Health Center Avera Health(health)
Divine Providence Health Center Avera Health(health)
Hegg Memorial Health Center Avera Health(health)
spiral(4)(dictionary)

Dizziness, pre-syncopal (health) and spiral organ (medicine)


Dizziness, pre-syncopal (health)


Dizziness before fainting. Some symptoms of dizziness such as wooziness, feeling about to black out, and tunnel vision may be pre-syncopal and are due to insufficient blood flow to the brain. These symptoms are typically worse when standing, improve with lying down and may be experienced by healthy individuals who rise quickly from a chair, often after a meal, and have a few seconds of disorientation.





spiral organ (medicine)


spiral organ


A prominent ridge of highly specialised epithelium in the floor of the cochlear duct overlying the basilar membrane of cochlea, containing one inner row and three outer rows of hair cells, or cells of Corti (the auditory receptor cells innervated by the cochlear nerve) supported by various columnar cells: the pillars of Corti, cells of Hensen, and cells of Claudius; the spiral organ is partly overhung by an awning-like shelf, the tectorial membrane, the free marginal zone of which is covered by a gelatinous substance in which the stereocilia of the outer hair cells are embedded.

Synonym: organum spirale, acoustic papilla, Corti's organ.