What's the difference between frons and vertex?

Frons


Definition:

  • (n.) The forehead; the part of the cranium between the orbits and the vertex.

Example Sentences:

  • (1) A well-preserved mummified child from about A.D. 1200 was recovered fron Canyon de Chelly in northeastern Arizona in 1971.
  • (2) The submaxillary glands and the kidneys of both diabetic Wistar strain and hypertensive rats contained significantly less glandular kallikrein than non-diabetic Wistar strain and hypertensive rats (reduction fron 40 to 76%).
  • (3) In a small rural community--Nord-Fron--almost 40% die outside institutions, 30% die in the local nursing home and only 30% die in hospitals.
  • (4) Dilution is seldom less than 6% but may exceed 40%, particularly when sampling fron neonates.
  • (5) Skin fron newborn mice or rats pretreated with this substance had increased epidermal mitotic activity which was inhibited cyclic AMP elevators.
  • (6) No significant changes were observed fron the start to the end of mineral water treatment.
  • (7) The readings were higher when the filter paper strips were placed between the fron halves of the upper and lower counterparts than when they were placed between the rear halves.
  • (8) Thus, although the frons width is apparently controlled genetically, it can also be influenced by temperature.
  • (9) Surgical liver biopsies were taken fron five patients suffering prolonged extrahepatic cholestasis, and five patients submitted to abdominal surgery excluding hepato-biliary diseases that were considered as controls.
  • (10) Dependence of the fron olfactory bulbar responses on NaCl concentration greatly varied from odorant to odorant.
  • (11) Instead, two product peaks elute near the solvent fron on reverse-phase HPLC.
  • (12) The patterns of the different wildtypes, species, and hybrids were used for taxonomic identification within the nasuta subgroup, in which the females are morphologically indistinguishable and the males differ only by the markings of their frons.
  • (13) According to the results of earlier investigations of other authors, there are differences between Escherichia-strains fron urinary tract infections and fron the feces of healthy persons with regard to their biochemical, hemolytic, necrotizing and pathogenic properties in mice experiments.
  • (14) The highest increase in the antibiotic activity, as well as in the enzyme inhibition was observed with respect to the compound with the hydrocarbon chain fron C12 to C16.
  • (15) Fron these observations the hypothesis may be suggested that nitroprusside inhibits platelet functions by mimicking the endogenous NO, and that the intracellular calcium metabolism is involved in the inhibitory activity of the drug.
  • (16) The 9 bp element V located in fron of the first 340 bp region appears in duplicated form as a direct repeat with sequence similarity to SV40 (or RNA polymerase II) enhancer sequences.
  • (17) Sixty oocytes fron 28 women, aged between 27 and 41 years, were analyzed.
  • (18) Fron a clinical standpoint, they are classified as benign tumors.
  • (19) The presence of the latter two markers distinguishes variant lines fron non-SCLC cell lines.
  • (20) The distribution of diagnostic radiographic changes between the right and left fron feet was equal.

Vertex


Definition:

  • (n.) A turning point; the principal or highest point; top; summit; crown; apex.
  • (n.) The top, or crown, of the head.
  • (n.) The zenith, or the point of the heavens directly overhead.
  • (n.) The point in any figure opposite to, and farthest from, the base; the terminating point of some particular line or lines in a figure or a curve; the top, or the point opposite the base.

Example Sentences:

  • (1) CNV1 was recorded at the vertex while CNV3 was recorded at multiple electrode sites to assess topographical differences.
  • (2) Preceding or during movement, maximum ERD was observed in most cases in central-vertex regions.
  • (3) Brain stem electric responses, recorded with external electrodes on vertex and ear lobes, are excellent for audiometry of young children.
  • (4) Umbilical blood-gas status at elective cesarean section with oxygen inhalation for breech presentation (25 cases) was compared with that for vertex presentation (25 cases), so as to confirm the security of full-term breech fetuses delivered by cesarean section under spinal anesthesia.
  • (5) An evoked brain response can also be elicited simultaneously from the vertex response is affected to the same degree by several different aspects of visual stimuli as is the corresponding occipital response.
  • (6) N1 and P2 to the last preceding frequent stimulus, the rare (attended target) stimulus, and the following two frequent stimuli were evaluated using 6 reference-independent measures: latency (time of maximal potential range between any two locations), amplitude of maximal potential range, global field power, vertex (Cz) current source density, location of extreme potential, and location of potential centroid.
  • (7) AEPs were recorded to an "oddball" paradigm from vertex and left and right temporal electrodes.
  • (8) The MRBPs had earlier onsets during the first runs of skill acquisition than during later training sessions; they occurred earlier when they preceded a stimulus train than when they preceded a single stimulus; the onset was earlier over the vertex than over the premotor area.
  • (9) In addition, careful parametric baseline studies were performed in each cat to strengthen the evidentiary linkage between wave A as recorded from the vertex in these experiments and previous studies describing the origin and trajectory of wave A in the brainstem reticular formation and several regions of thalamus, including the intralaminar nuclei.
  • (10) Responses were recorded between needle electrodes placed on the vertex and the ipsilateral ear, with ground at the interorbital line.
  • (11) A model of sleep phasic events such as vertex waves, K complexes, delta waves and sleep spindles is proposed.
  • (12) The enhancement results have been confirmed for central brain vertex stimulation using the Sheffield magnet.
  • (13) Anodal stimulation at the vertex produced complex corticospinal volleys that could be recorded at both sites, with multiple waves analogous to the D and I waves documented in animal experiments.
  • (14) N140 and P190 (the "vertex potentials") are probably generated bilaterally in the frontal lobes, including orbito-frontal, lateral and mesial (supplementary motor area) cortex.
  • (15) An otherwise healthy five-year-old girl presented for evaluation of a large patch of erythematous scaling alopecia on the vertex of her scalp.
  • (16) Oxygen extraction in the breech (Mean: 49.0%) was higher than that in the vertex (32.9%).
  • (17) As it is quite unlikely that P3 generating sources are strongly active during the processing of the frequent stimulus, this effect is possibly due to a component overlap from the vertex potential.
  • (18) The frequency of congenital anomaly was also studied in 8,863 infants delivered by breech and vertex presentation.
  • (19) Carbon particles entering the subarachnoid space over the vertex of the cerebral hemispheres drained along selected paravascular and subfrontal pathways in the subarachnoid space to the cribriform plate and thence into nasal lymphatics and cervical lymph nodes.
  • (20) As it was not possible to collect sufficient material for valid conclusions on a series of patients with similar uterine activity, fetal size, uterine volume, cervical resistance, and lower uterine segment development; only women in normal labor without disproportion and delivered of infants in the occipitoanterior vertex presentation were included in the study.