mouth to mask breathing
pin-head pigmentation spot
shelf force
| otic barotrauma | Middle ear problems due to changing atmospheric pressures, as when a plane descends to land. The problems include ear pain, ringing, diminished hearing and, sometimes, dizziness. Alternate terms include aerotitis: aerotitis media, barotitis, barotitis media. (12 Dec 1998) |
|---|---|
| otic capsule | The cartilage capsule surrounding the inner ear mechanism; in elasmobranchs, it remains cartilaginous in the adult; in the embryos of higher vertebrates, it is cartilaginous at first but later becomes bony (at approximately 23 weeks in humans). (05 Mar 2000) |
| otic ganglion | An autonomic ganglion situated below the foramen ovale medial to the mandibular nerve; its postganglionic, parasympathetic fibres are distributed to the parotid gland. Synonym: ganglion oticum, Arnold's ganglion, auricular ganglion, otoganglion. (05 Mar 2000) |
| otic pits | Paired depressions, one on either side of the head of the embryo, marking the location of the future auditory vesicles. Synonym: otic pits. (05 Mar 2000) |
| otic placodes | Paired ectodermal placode's that sink below the general level of the superficial ectoderm to form the auditory vesicles. Synonym: otic placodes. (05 Mar 2000) |
| otic vesicle | One of the paired sacs of invaginated ectoderm that develop into the membranous labyrinth of the internal ear. Synonym: acoustic vesicle, otic vesicle. (05 Mar 2000) |
| animal wax | Beeswax, spermaceti, and any wax derived from the animal kingdom. (05 Mar 2000) |
| baseplate wax | A hard pink wax used in dentistry for making occlusion rims. (05 Mar 2000) |
| bleached wax | Yellow wax bleached by being rolled very thin and exposed to the light and air, or bleached by chemical oxidants; same uses as yellow wax. Synonym: bleached wax, white beeswax. (05 Mar 2000) |
| bone wax | A mixture of antiseptic agents, oil, and wax used to stop bleeding by plugging bone cavities or haversian canals. Synonym: Horsley's bone wax. (05 Mar 2000) |
| boxing wax | Wax used for boxing impressions. See: boxing. (05 Mar 2000) |
| Brazil wax | A wax obtained from the Brazilian wax palm, Copernica cerifera; used in pharmaceuticals to coat medicaments in sustained release preparations and surfaces of tablets; used in waxes for wood and metal. Synonym: Brazil wax, palm wax. (05 Mar 2000) |
| carnauba wax | A wax obtained from the Brazilian wax palm, Copernica cerifera; used in pharmaceuticals to coat medicaments in sustained release preparations and surfaces of tablets; used in waxes for wood and metal. Synonym: Brazil wax, palm wax. (05 Mar 2000) |
| palm wax | A wax obtained from the Brazilian wax palm, Copernica cerifera; used in pharmaceuticals to coat medicaments in sustained release preparations and surfaces of tablets; used in waxes for wood and metal. Synonym: Brazil wax, palm wax. (05 Mar 2000) |
| vegetable wax | Palm wax or any wax derived from plants such as the bayberry. (05 Mar 2000) |