(n.) Any animal of the genus Hyrax, of which about four species are known. They constitute the order Hyracoidea. The best known species are the daman (H. Syriacus) of Palestine, and the klipdas (H. capensis) of South Africa. Other species are H. arboreus and H. Sylvestris, the former from Southern, and the latter from Western, Africa. See Daman.
Example Sentences:
(1) Semi-thin plastic sections reveal that the carotid baroreceptor region in the rock hyrax comprising the origin of the internal carotid artery has a preponderantly elastic structure and a thick tunica adventitia.
(2) Intraorally the protraction device can either be attached to a bonded acrylic expansion appliance or to a cemented Hyrax depending on the developmental stage of the dentition.
(3) In vitro metabolism of progesterone by hyrax whole blood, erythrocytes, or plasma in the presence or absence of NADPH was investigated.
(4) Centriole formation in male meiosis of the hyrax, Heterohyrax syriacus, and the Berdmore palm squirrel, Memetes berdmorei, was investigated by serial section analysis of selected regions of the seminiferous epithelium and isolated meiotic cells.
(5) Cine-x-ray (100 frames per second) was used to record feeding behavior in four adult hyraxes (Procavia syriacus), herbivores.
(6) Adult males from a colony of lesser rock hyrax found near the equator in Kenya exhibited an annual cycle of testicular activity characterized by intense spermatogenesis and elevated androgen status from May to July.
(7) After the operation the palatal expansion appliance (Biedermann-Hyrax-screw) was normally activated one one-quarter turn twice a day until the desired expansion was achieved.
(8) A notable resemblance between the hyrax and elephant sequences was observed, setting them apart from the ungulates, including whale.
(9) The perioral and intraoral representations are relatively large in SI of hyrax and exhibit considerable distortion.
(10) Radioimmunoassay and bioassay estimates of LH in hyrax pituitaries containing widely differing quantities of pituitary hormones were similar.
(11) As part of a study of the evolutionary development of the eye lens protein alpha-crystallin the 173-residue A chain of this protein has been studied in elephant, whale, hyrax and rhinoceros.
(12) However, with the exception of the elevated potassium levels observed in the cranial stomach, the hyrax poses no unusual osmotic or electrolyte concentrations when compared to man or other mammals.
(13) The findings showed the two-point RPEe was as efficient as the Hyrax in obtaining dental expansion of the maxillary posterior teeth with less effect on the maxillary anterior and mandibular teeth.
(14) This study uses a comparative approach to evaluate the role of footpad sweating on increasing friction, utilizing a variety of mammals which possess sweat glands on their footpads (rat, tenrec, hyrax, and dog).
(15) Restriction-fragment-length polymorphisms in mitochondrial DNA (mtDNA) were used to evaluate geographic population genetic structure in the rock hyrax, Procavia capensis, a species which occurs widely, though restricted to rocky habitat, throughout South Africa.
(16) Evidence of an annual testicular cycle contradicted the prevalent belief that equatorial hyrax breed all year and suggested that the testicular cycle is a conservative element of hyracoid reproductive strategy.
(17) For cutaneous leishmaniasis caused by Leishmania aethiopica, the hyrax and the giant rat are the proven reservoirs of the disease while several species of rodents have been demonstrated to harbor L. major.
(18) The following species were represented: red kangaroo, common tree shrew, Senegal-Galago, Demidoff's-Galago, brown howler monkey, woolly monkey, long-haired spider monkey, white-eared marmoset, chimpanzee, three-toed sloth, palm squirrel, red panda, fennec fox, tree hyrax and large-toothed hyrax.
(19) These results are a quantitative description of the coordination that exists during different feeding behaviors (ingestion, intraoral transport, mastication, and swallowing) in normal, freely functioning hyraxes.
(20) Sulci are reliable landmarks demarcating boundaries of SI in hyrax as they are in other mammals.
Incisor
Definition:
(a.) Adapted for cutting; of or pertaining to the incisors; incisive; as, the incisor nerve; an incisor foramen; an incisor tooth.
(n.) One of the teeth in front of the canines in either jaw; an incisive tooth. See Tooth.
Example Sentences:
(1) This suggests that molars do not maintain a fixed relationship to incisors over time, and extreme care must be taken to standardize an experiment to a specific body weight when using this method.
(2) After loss of permanent central incisors the treatment of choice could be either orthodontic closure or maintenance of the gap for a replacement-prosthetic, autotransplantation or implant.
(3) The roots of the incisor teeth should, if possible, be placed accurately in this zone and a method of achieving this is suggested.
(4) Blood flow changes in the dental pulp of lower canine teeth of mature cats and incisors of mature rats were investigated with simultaneous laser Doppler flowmetry and local 125I-clearance (wash-out) during electrical sympathetic stimulation, efferent stimulation of n. alveolaris inferior (IAN) (cats) and i.a.
(5) Maxillary and mandibular incisors and premolars of three rhesus monkeys were used.
(6) A case history is presented of a 10-year-old patient, who accidentally injured her maxillary central incisor.
(7) The results suggest that there is a general tendency for tooth mortality to be lower in the present survey and this change is particularly noticeable for maxillary incisor and canine teeth.
(8) Erosion was observed on all teeth, but was commonest on the upper incisors, canines and premolars, and severest on palatal surfaces.
(9) The ability to perceive thickness differences between the incisors was more accurate after 1 hour's chewing than normally.
(10) The localization of alkaline phosphatases in dentinogenically active rat incisor odontoblasts was studied by means of subcellular fractionation and electron microscopical histochemistry.
(11) Orthodontic closure of the space from both sides was performed with fixed appliance, leaving the remaining central incisor in the midline.
(12) Monkey incisor teeth were pulpotomized in groups of 10.
(13) Maximal and submaximal bite forces were measured at the incisor and right and left first molar bite positions.
(14) 16 maxillary and mandibular permanent lateral incisors of four dogs aged from 5 to 7 months were immediately replanted without endodontic treatment.
(15) To study tooth development longitudinally, the timing of the beginning of calcification of one maxillary central incisor was assessed from occlusal X-rays taken between the ages of 2 and 18 months in 107 of the above mentioned 131 subjects.
(16) Four weeks after replantation, a more than threefold increase in PBF was measured in premolars with two roots, while PBF in premolars with one root and incisors was consistently reduced to an average of 40% of the controls.
(17) The reproducibility of this surgical technique was demonstrated as well as its usefulness in combination with survey sections for multi-method investigations of rat incisor enamel formation and mineralization.
(18) From each sample was counted the number of odontoclasts appearing on the root surface and measured the volume of the root in the maxillary deciduous incisor.
(19) The results indicate that the tongue-to-teeth contact area of each sound differ from the others, however, it's range is confined within cervical half of lingual surface of incisors and lingual cusps of molars.
(20) GAP-43-like immunoreactivity in developing and mature incisor and canine tooth pulp nerve fibers in the cat was examined with fluorescence immunohistochemistry and pre-embedding immunogold electron microscopy.