See Also: Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
melatonin(dictionary)
melatonin(medicine)
melatonin(encyclopedia)
melatonin(dictionary)
Melatonin(health)
melatonin deacetylase(medicine)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
auditory(1)(dictionary)

auditory tube (medicine) and melatonin (medicine)


auditory tube (medicine)


auditory tube


A tube leading from the tympanic cavity to the nasopharynx; it consists of an osseous (posterolateral) portion at the tympanic end, and a fibrocartilaginous (anteromedial) portion at the pharyngeal end; where the two portions join, in the region of the sphenopetrosal fissure, is the narrowest portion of the tube (isthmus); the auditory tube enables equalization of pressure within the tympanic cavity with ambient air pressure, referred to commonly as "popping of the ears".

Synonym: tuba auditiva, tuba auditoria, eustachian tube, guttural duct, otopharyngeal tube, otosalpinx, pharyngotympanic tube, salpinx, tuba acustica, tuba eustachiana, tuba eustachii.


melatonin (medicine)


melatonin
<hormone> A hormone secreted by the pineal gland.

In lower vertebrates causes aggregation of pigment in melanophores and thus lightens skin. In humans believed to play a role in establishment of circadian rhythms.