pars tensa

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Related to pars tensa: cholesteatoma, pars flaccida

pars tensa

the thick and taut part of the tympanic membrane. See also pars flaccida.


pl. partes [L.] a division or part.

pars ciliaris retinae
see ciliary body.
pars distalis
the major part of the anterior lobe of the pituitary gland, the adenohypophysis. It is separated from the neurohypophysis by the intraglandular cleft, the residual lumen of Rathke's pouch.
pars disseminata
the thin layer of the prostate that surrounds the urethra; as distinct from the body of the gland.
pars flaccida
the small, triangular portion of the tympanic membrane lying between the lateral process of the malleus and the margins of the tympanic incisure.
pars infundibularis
the neural stalk that connects the neurohypophysis with the hypothalamus.
pars intermedia
the part of the adenohypophysis consisting of a layer of cells contiguous with the neurohypophysis. The source of melanocyte-stimulating hormone.
pars iridica retinae
see iris1.
pars longa glandis
the long, cylindrical part of the dog glans; distinct from the bulbar part.
pars major uteri
the section of the bird's oviduct in which the egg is held while the shell is formed.
pars mastoidea
the mastoid portion of the temporal bone, being the irregular, posterior part.
pars nervosa
of the pituitary gland. See neurohypophysis.
pars optica retina
the large, posterior part of the retina which contains the nervous elements of rods, cones and optic nerve fibers.
pars petrosa
the petrous portion of the temporal bone, containing the inner ear.
pars pigmentosa
the pigmented part of the retina.
pars plana
the thin flat part of the ciliary body; the ciliary disk.
pars plicata
the folded part of the ciliary body.
pars pylorica
distal segment of the stomach or abomasum, curved behind the omasum.
pars pylorica ventriculi
the distal (aboral) third of the stomach.
pars squamosa
the flat, scalelike, anterior and superior portion of the temporal bone.
pars tensa
the drumlike part of the tympanic membrane.
pars tuberalis
a layer of cells surrounding the neural stalk of the pituitary gland and forming part of the adenohypophysis.
pars tympanica
the tympanic portion of the temporal bone, forming the anterior and inferior walls and part of the posterior wall of the external acoustic meatus.
References in periodicals archive ?
Canal wall destruction: more than half the length of the bony ear canal, Destruction of the tegmen: with a deffect that requires surgical repair, and Adhesive otitis: total adhesion of the pars tensa.
Cartilage tympanoplasty for posterosuperior retraction pockets of the pars tensa in chidren.
Effectiveness of non-surgical closure of tympanic membrane pars tensa perforation.
All the patients included in our study, had central perforations in pars tensa and they were classified according to the number of quadrants it occupied.
Deep retraction pockets, with or without squamous debris, were treated by placing a tympanostomy tube in the pars tensa, in a location removed from the lesion (figure).
The so called 'safe' disease was characterized by a central perforation of the pars tensa and was also called tubo-tympanic disease to indicate disease of the Eustachian tube and tympanic cavity.
The photo shows the malleus (minus the head, which had been amputated), the chorda tympani supporting the pars tensa, and the transposed incus on the head of the stapes.
The edges of the torn pars tensa can be seen folded under the medial surface of the tympanic membrane perforation.
This otoscopic view of a left ear demonstrates an elliptical perforation immediately posterior to the malleus and hemorrhage involving the anterior portion of the pars tensa.
The entire pars tensa is intact, but there is an adhesion of the tympanic membrane to the incus.

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