helicotrema

(redirected from Breschet hiatus)
Also found in: Dictionary, Encyclopedia, Wikipedia.

helicotrema

 [hel″ĭ-ko-tre´mah]
the passage that connects the scala tympani and the scala vestibuli at the apex of the cochlea.
Helicotrema, shown in the interior of the right osseous labyrinth. From Dorland's, 2000.

hel·i·co·tre·ma

(hel'i-kō-trē'mă), [TA]
A semilunar opening at the apex of the cochlea through which the scala vestibuli and the scala tympani of the cochlea communicate with one another.
[G. helix, a spiral, + trēma, a hole]

helicotrema

/hel·i·co·tre·ma/ (hel″ĭ-ko-tre´mah) a passage in the ear between the scala tympani and scala vestibuli.
Enlarge picture
Helicotrema, shown in the interior of the right bony labyrinth.

helicotrema

a narrow slit at the apex of the cochlea where the two canals of the cochlear duct, the scala vestibuli and the scala tympani, communicate.

hel·i·co·tre·ma

(hel'i-kō-trē'mă) [TA]
A semilunar opening at the apex of the cochlea through which the scala vestibuli and the scala tympani of the cochlea communicate with one another.
[G. helix, a spiral, + trēma, a hole]

helicotrema

A semilunar opening at the apex of the cochlea through which the fluid in the scala vestibuli and the scala tympani communicate so that sound vibrations can pass to the round window.

helicotrema

an opening at the apex of the COCHLEA connecting the scala tympani and the scala vestibuli.

Breschet,

Gilbert, French anatomist, 1784-1845.
Breschet bones - one of the small ossicles occasionally found in the ligaments of the sternoclavicular articulation. Synonym(s): os suprasternale
Breschet canals - channels in the diploë that accommodate the diploic veins. Synonym(s): diploic canals
Breschet hiatus - a semilunar opening at the apex of the cochlea through which the scala vestibuli and the scala tympani of the cochlea communicate with one another. Synonym(s): helicotrema
Breschet sinus - a paired dural venous sinus beginning on the parietal bone, running along the sphenoidal ridges, and emptying into the cavernous sinus. Synonym(s): sphenoparietal sinus
Breschet vein - one of the veins in the diploë of the cranial bones. Synonym(s): diploic vein

Scarpa,

Antonio, Italian anatomist, orthopedist, and ophthalmologist, 1747-1832.
canals of Scarpa - separate canals for the nasopalatine nerves and vessels.
fossa scarpae major - Synonym(s): femoral triangle
Scarpa fascia - the deeper membranous or lamellar part of the subcutaneous tissue of the lower abdominal wall. Synonym(s): membranous layer of superficial fascia
Scarpa fluid - the fluid contained within the membranous labyrinth of the inner ear. Synonym(s): endolymph
Scarpa foramina - two openings in the line of the intermaxillary suture that transmit the nasopalatine nerve.
Scarpa ganglion - a collection of bipolar nerve cell bodies forming a swelling on the vestibular part of the eighth nerve in the internal acoustic meatus. Synonym(s): vestibular ganglion
Scarpa habenula - Synonym(s): Haller habenula
Scarpa hiatus - a semilunar opening at the apex of the cochlea through which the scala vestibuli and the scala tympani of the cochlea communicate with one another. Synonym(s): helicotrema
Scarpa liquor - the fluid contained within the membranous labyrinth of the inner ear. Synonym(s): endolymph
Scarpa membrane - closes the fenestra cochleae or rotunda. Synonym(s): secondary tympanic membrane
Scarpa method - cure of an aneurysm by ligation of the artery at some distance above the sac.
Scarpa sheath - one of the coverings of the spermatic cord, formed of delicate connective tissue and of muscular fibers derived from the internal oblique muscle. Synonym(s): cremasteric fascia
Scarpa staphyloma - bulging near the posterior pole of the eyeball due to degenerative changes in severe myopia. Synonym(s): posterior staphyloma
Scarpa triangle - branches of the femoral nerve are distributed within the femoral triangle. Synonym(s): femoral triangle; fossa scarpae major

helicotrema

the passage that connects the scala tympani and the scala vestibuli at the apex of the cochlea in the internal ear.