(n.) A neck or narrow slip of land by which two continents are connected, or by which a peninsula is united to the mainland; as, the Isthmus of Panama; the Isthmus of Suez, etc.
Example Sentences:
(1) To explore relations between preload, afterload, and stroke volume (SV) in the fetal left ventricle, we instrumented 126-129 days gestation fetal lambs with ascending aortic electromagnetic flow transducers, vascular catheters, and inflatable occluders around the aortic isthmus (n = 8) or descending aorta (n = 7).
(2) Resection of the peritracheal segments of the thyroid gland with the isthmus extirpation was performed.
(3) Detection of PGE2-specific binding in the oviductal isthmus on Day 2 and Day 5 indicates that the oviduct is responsive to PGE2 when it is capable of transporting equine embryos.
(4) In control tissues there was a significant variation in vascularity according to geographic location in the following order of magnitude: fundus greater than corpus greater than cornua greater than isthmus.
(5) Inaccurate IFS diagnosis of depth of myometrial invasion can occur when tumor involves the uterine isthmus or cornua and when tumor invades areas of adenomyosis.
(6) Marginal overhang was the prevailing type of failure (17%), recurrent caries occurred at 12% of the restorations, unacceptable proximal contact at 10%, unacceptable marginal adaptation at 8% and isthmus fractures at 2%.
(7) Toral neurons project to the secondary visceral nucleus of the isthmus and to the central and anterior thalamic nuclei of the dorsal thalamus.
(8) However, of the four children with a residual gradient greater than 20 mm Hg, two were the youngest in the study, and in two the aorta was inadvertently dilated with a balloon 4 to 5 mm smaller than the isthmus diameter.
(9) Ventilatory conditions, or the existence of soft tissue density, were evaluated by HRCT at such locations as the supratubal recess, mesotympanum, anterior and posterior parts of the tympanic isthmus, epitympanum, and mastoid antrum.
(10) Ganglion cells innervating the posterior canal were located in the caudal part of the inferior ganglion, while those cells innervating the saccule were located in the rostral part of the inferior ganglion, scattered in the superior ganglion, and concentrated at the junction (isthmus) between the two.
(11) Examination of the characteristics of the EP reveals that there is a significantly higher proportion located in the isthmus in the group of patients without an IUD, whereas the fimbrial location is more frequent among patients with an IUD.
(12) In addition, labelled cells were found in the torus semicircularis, in and around the nucleus isthmus pars parvocellularis.
(13) Ova were consistently recovered from the ampulla 24 hours after ovulation, from both the ampulla and isthmus at 48 hours, and from the uterus 72 hours after ovulation.
(14) Some metric parameters (height and width, sizes of the isthmus the an angle between the corns) are given with the purpose of greater precision of roentgenological interpretation.
(15) A biopsy was taken from the mucosa of the intramural part, isthmus, and ampulla in each tube.
(16) End diastolic flow velocity just beneath the aortic isthmus was measured within 72 hours of cardiac catheterisation by pulsed Doppler echocardiography in 30 controls and 61 patients with aortic regurgitation.
(17) Microsurgical anastomosis restored electrical continuity between anastomosed segments in both the ampulla and isthmus.
(18) One of them was located at mid-descending thoracic aorta and another was aortic isthmus.
(19) Coitus induced ovulation produced a characteristic oviductal motility pattern consisting of (i) initial relaxation of both isthmus and ampulla (4-12 h) followed by (ii) increased isthmic motility in the face of a continually relaxed ampulla (36-48 h), and finally phase (iii) leading to restitution of both ampullary and isthmic motility to the base-line at 72-96 h. Estimation of ova positions indicated the presence of fertilized eggs in the ampulla and ampullo-isthmic junction at 48 h and the ova could come to the end of the isthmic segment only at 72 h or after.
(20) By their nature, intracoronal restorations provide resistance to nonaxial dislodging forces, and features such as the occlusal isthmus and proximal boxes and grooves will obviously also increase this resistance.
Promontory
Definition:
(n.) A high point of land or rock projecting into the sea beyond the line of coast; a headland; a high cape.
(n.) A projecting part. Especially: (a) The projecting angle of the ventral side of the sacrum where it joins the last lumbar vertebra. (b) A prominence on the inner wall of the tympanum of the ear.
Example Sentences:
(1) Elizabeth McCaul, CEO of Promontory Europe and former New York Superintendent of Banks, had been asked to act as a special adviser, together with the firm's chief operating officer, Raffaele Cosimo.
(2) Electric middle-latency auditory evoked responses (EMLRs) to transtympanic promontory stimulation were obtained from 19 of 22 ears of profoundly hearing-impaired patients evaluated for cochlear implant candidacy.
(3) The standard procedure consisted of an abdominal sacropexy, with use of Marlex mesh to anchor the vaginal vault to the sacral promontory and retroperitonealization of the mesh.
(4) The electrodes can be implanted in bundles through the round window or into the modiolus; they can, however, also be introduced individually through several drill holes in the promontory for placement in the scala tympani and vestibuli.
(5) Your path begins to rise a little here, heading first east then south east around the rock promontories above.
(6) Although no promontory branch of the internal carotid artery appears, there is a well-developed "promontory canal" containing a nerve trunk.
(7) In 2 patients, the radiotherapeutic field extended downwards only as far as the sacral promontory.
(8) Preimplant screening included audiometric testing, electronystagmogram (ENG), promontory stimulation, computed tomography (CT) scanning, and psychological evaluation.
(9) The relative laser light attenuation by the human skin specimens corresponded to that of the human promontory bone.
(10) Sensations induced by electrical stimulation of the cochlea in humans through a promontory or a round window electrode were studied in sixteen subjects.
(11) Lysozyme was demonstrated by an immunocytochemical technique in the biopsied mucosa obtained from the promontory of the fifteen patients who had chronic middle ear effusions.
(12) Promontory testing (PT) and measurement of cochlear microphonics (CM) enabled us to distinguish between neural and sensory deafness.
(13) A single channel stimulation at the round window or promontory is used.
(14) Affected goats had folded pinnas, and the tympanic cavity was decreased due to multiple, polypoid projections of bone covered by middle ear mucosa which obstructed the view of the cochlear promontory.
(15) The Utah-design multichannel cochlear implant consists of six intracochlear monopolar electrodes, one promontory electrode, and an indifferent electrode.
(16) An ultrasound revealed a uterus incarcerated between the sacral promontory and the pubis.
(17) The operator's left hand tenses the abdominal skin while palpating the sacral promontory.
(18) ), and an alternative to promontory rectopexy: sacral fixation of the rectum, associated sigmoidectomy, Delorme's operation?
(19) We have taken two views and two slices: an AP view to study the contents of the uterus and the morphology of the upper strait; a profile view to measure the diameter between the promontory of the sacrum and posterior surface of the symphysis, and we have programmed the two following slices: a perpendicular slice at the level of the upper strait measuring directly the transverse median diameter; another slice at the level of the sciatic spines to measure directly the diameter between these spines.
(20) To investigate the feasibility of a cochlear implant in the labyrinthectomized ear, promontory electrical testing by transtympanic needle was performed in six patients who had undergone a unilateral transmastoid labyrinthectomy 6 weeks to 5 years previously.