(n.) The tip, top, point, or angular summit of anything; as, the apex of a mountain, spire, or cone; the apex, or tip, of a leaf.
(n.) The end or edge of a vein nearest the surface.
Example Sentences:
(1) After 1 year, anesthesia was induced with chloralose and an electrode catheter placed at the right ventricular apex.
(2) Following injections of HRP into the apex of the heart, the sinoatrial (SA) nodal region and the ventral wall of the right ventricle, we observed that HRP-labeled sympathetic neurons were localized predominantly in the right stellate ganglia, and to a lesser extent, in the right superior and middle cervical ganglia, and left stellate ganglia.
(3) It is therefore suggested that salt water adaptation triggers a cellular reorganization of the epithelium in such a way that leaky junctions (a low resistance pathway) appear at the apex of the chloride cells.
(4) When HRP was injected in the left ventricular wall or the apex, few labeled neurons were identified in the DMN.
(5) The length of the diaphragmatic wall of the heart in both the right and left ventricle was equal to the sum of the length of the inflow tract and the thickness of the ventricular wall at the apex.
(6) However, the external muscle fibers of the ventricles ran clockwise from base to apex toward the center of the vortex, which had a striking resemblance to the normal rather than the mirror image pattern.
(7) In the RAO view with the collimator flat against the chest there was better resolution of the cardiac apex.
(8) Their proliferating regions are located in the apex tip, where the various cells originate.
(9) In these tissues, the viral DNA replicated at the site of inoculation and was transported first to the roots, then to the shoot apex and to the neighboring leaves and the flowers.
(10) The vertical distances were compared with measurements taken from periapical radiographs between the apex of each mesial root and the superior border of the mandibular canal prior to sectioning.
(11) Three of six patients in whom treatment failed had disease at the vaginal apex.
(12) We recommend this skin incision for young patients with pneumothorax if the chest CT scan confirms that the bullae or blebs are localized to the apex of superior segment of the lower lobe.
(13) MRI only offered advantages over CT in lesions of the orbital apex, the upper part of the orbit, and in the diagnosis of inflammatory processes.
(14) In the accelerated protocol, one, two, and then three extrastimuli were introduced at each of three basic drive train cycle lengths (350, 400, and 600 msec) at the right ventricular apex; the procedure was repeated at a second right ventricular site.
(15) Magnetic resonance imaging of the chest in patients with lung cancer is being investigated, but current studies comparing it with CT demonstrate no definite advantage at this time, with the possible exception of the lung apex in which T1 weighted thin-section coronal views are useful.
(16) The apex to base lung distribution of 99Tcm-C and 81Krm appeared to be similar.
(17) If a web has a low apex angle and the skin is elastic, the length-width ratio may be as great as 1.5:1.
(18) Double product increase was inferior to that recorded before atenolol administration; the difference became significant after 2 months and reached its apex after 6 months of treatment.
(19) HRCT scans at the apex of the thorax in all nine patients scanned at this level showed that extrapleural fat with interspersed vessels accounted for most of the plain radiographic opacity.
(20) To determine if anodal excitation during bipolar stimulation facilitates the initiation of sustained monomorphic ventricular tachycardia, nonsustained polymorphic ventricular tachycardia, or repetitive ventricular responses, both bipolar and cathodal unipolar programmed ventricular stimulation with one to three extrastimuli delivered during ventricular pacing at two rates from the right ventricular apex were performed in 28 patients evaluated for spontaneous sustained ventricular tachycardia or ventricular fibrillation (11 patients), nonsustained tachycardia (eight patients), or syncope (nine patients).
Circinate
Definition:
(a.) Rolled together downward, the tip occupying the center; -- a term used in reference to foliation or leafing, as in ferns.
(v. t.) To make a circle around; to encompass.
Example Sentences:
(1) CT-scan of thorax, however, showed a bunch of circinate opacities in the upper lobe of the right lung.
(2) Some patients present with pustules on an erythematous base; in others, annular or circinate papulonodular lesions predominate, which may become crusted.
(3) A 30-year-old man was found to have juxtapapillary exophytic capillary hemangioma complicated by circinate maculopathy and peripapillary exudative retinal detachment.
(4) basal keratinocyte processes protruding through basal lamina gaps were observed in psoriasis, circinate balanitis, pityriasis rubra pilaris, patch tests, gold dermatitis and conjunctivitis.
(5) As a clinical analogue to circinate balanitis, it should have the same diagnostic value.
(6) The HL-A phenotype of 17 patients with a typical clinical picture of circinate erosive balanitis was determined.
(7) We believe that pericentral pigmentary retinal degeneration and circinate choroidal degeneration are distinct entities.
(8) The blisters, present since birth, were numerous and were often circinate with central healing.
(9) It is characterized by pruritic circinate plaques that are studded with follicular papules and pustules.
(10) A case of eruptive porokeratosis of Mibelli with diverse morphologic features, including circinate macular, circinate plaque and verrucous varieties is presented.
(11) Three male and two female patients (aged 16 to 22 years) developed bilateral deep corneal stromal vascularization and circinate-pattern lipid exudation resembling interstitial keratitis after wearing adequately fitting hydrogel daily wear soft contact lenses comfortably for periods of ten to 24 months.
(12) Rare cases of migrant circinated eruptions occurring during the course of lupus erythematosus have been published so far.
(13) The diagnosis of circinate choroidal degeneration was made.
(14) The case is report of a boy aged 6 months whose dermatosis had set in suddenly 15 days before in the form of large round circinate patches on the face, thorax, abdomen, dorsum and extremities.
(15) Lesions missed by ophthalmoscopy but detected by the camera included soft exudates and circinate rings of hard exudates, sometimes encroaching on the macula.
(16) The phase of the oral contraceptive cycle appeared to have a marked effect on the initiation and duration of the circinate lesions, the tongue changes being severest on the 17th day of the cycle.
(17) Despite 2 years of griseofulvin, 23 months of ketoconazole and 8 months of itraconazole, the therapeutic failure was evident: circinate herpes, papulo-nodules, vegetating plaques, ulceration, superficial and profound adenopathies, cerebral involvement, and deterioration of the general state.
(18) We present the case of a patient with incomplete Reiter's Syndrome with arthritis, circinate balanitis and psoriasilike lesions of skin and nails who developed ischemic colitis.
(19) The Authors report a case of infantile recurrent circinate erythematous psoriasis, as described by Lapière, in a nine year old child.
(20) In addition circinate lesions developed on the vulva similar to those seen on the glans penis.