endolymphatic sac

(redirected from Endolymphatic sacs)
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sac

 [sak]
a baglike organ or structure; see also bag, pocket, and pouch.
air s's (alveolar s's) the spaces into which the alveolar ducts open distally, and with which the alveoli communicate; see also lung.
amniotic sac the sac formed by the amnion, enclosing the fetus suspended in amniotic fluid; popularly known as the bag of waters.
conjunctival sac the potential space, lined by conjunctiva, between the eyelids and the eyeball.
endolymphatic sac the blind, flattened cerebral end of the endolymphatic duct.
hernial sac the peritoneal pouch that encloses protruding intestine.
lacrimal sac the dilated upper end of the nasolacrimal duct; see also lacrimal apparatus.
yolk sac the extraembryonic membrane connected with the midgut; in vertebrates below true mammals, it contains a yolk mass.
Yolk sac in a developing embryo. From Applegate, 2000.

en·do·lym·phat·ic sac

[TA]
the dilated blind extremity of the endolymphatic duct, which lies external to the dura on the posterior aspect of the petrous part of the temporal bone.

endolymphatic sac

the blind end of an endolymphatic duct.

en·do·lym·phat·ic sac

(en'dō-lim-fat'ik sak) [TA]
The dilated blind extremity of the endolymphatic duct.
Synonym(s): saccus endolymphaticus [TA] , Böttcher space.

Böttcher,

Arthur, Estonian anatomist, 1831-1889.
Böttcher canal - a duct that connects the inner aspect of the utricle with the endolymphatic duct a short distance from its origin from the saccule. Synonym(s): utriculosaccular duct
Böttcher cells - cells of the basilar membrane of the cochlea.
Böttcher crystals - small crystals observed microscopically in prostatic fluid.
Böttcher ganglion - ganglion on the cochlear nerve in the internal acoustic meatus.
Böttcher space - the dilated blind extremity of the endolymphatic duct. Synonym(s): endolymphatic sac
Charcot-Böttcher crystalloids - see under Charcot

Cotunnius,

(Contugno), Domenico Felice Antonio, Italian anatomist, 1736-1822.
aqueductus cotunnii - a bony canal of the petrous portion of the temporal bone, giving passage to the endolymphatic duct and a small vein. Synonym(s): aqueduct of vestibule; Cotunnius aqueduct; Cotunnius canal
Cotunnius aqueduct - Synonym(s): aqueductus cotunnii
Cotunnius canal - Synonym(s): aqueductus cotunnii
Cotunnius disease - pain in the lower back and hip radiating down the back of the thigh into the leg now known to usually be due to herniated lumbar disk compromising the L5 or S1 root. Synonym(s): sciatica
Cotunnius liquid - the fluid contained within the osseus labyrinth. Synonym(s): liquor cotunnii; perilymph
Cotunnius space - the dilated blind extremity of the endolymphatic duct. Synonym(s): endolymphatic sac
liquor cotunnii - Synonym(s): Cotunnius liquid

en·do·lym·phat·ic sac

(endō-lim-fatik sak) [TA]
Dilated blind extremity of endolymphatic duct, which lies external to the dura on posterior aspect of petrous part of temporal bone.

sac

a pouch; a baglike organ or structure. See also conjunctival sac.

air sac
1. alveolar sac.
2. one of the large air-filled diverticula of the respiratory system of birds. See also air sacs.
allantoic sac
alveolar s's
the spaces into which the alveolar ducts open distally, and with which the alveoli communicate.
anal sac
endolymphatic sac
the blind, flattened cerebral end of the endolymphatic duct.
heart sac
the pericardium.
hernial sac
the peritoneal pouch that encloses a herniated viscus or mesentery.
lacrimal sac
see lacrimal sac.
paranal sac
pleural sac
the pleura-lined cavity which contains the lung.
ruminal sac
one of the dorsal and ventral sacs of the rumen which are themselves further subdivided to create a caudodorsal sac and a caudoventral sac.
yolk sac
the extraembryonic membrane connected with the midgut; in vertebrates other than true mammals, it contains a yolk mass. See also yolk sac.