What's the difference between prenasal and prenatal?
Prenasal
Definition:
(a.) Situated in front of the nose, or in front of the nasal chambers.
Example Sentences:
(1) Fragments of the frontonasal mass give rise to typical upper-beak-like structures: a long central rod of cartilage, the prenasal cartilage and an egg tooth.
(2) The protruding adult upper beak containing the prenasal cartilage is formed from the frontonasal mass, the paired maxillary primordia form the sides of the face, while the lower beak is derived from the paired mandibular primordia which contain the two Meckel's cartilages.
(3) These courses correspond to embryonic midline diverticula of dura (with or without arachnoid and brain tissue) that protrude into a) the fonticulus nasofrontalis and b) the prenasal space situated behind the nasal bones and in front of the nasal capsule, occasionally reaching the surface ectoderm.
(4) It is concluded that straightening of the angle between the ventral contour of the interorbital septum and the long axis of the prenasal process is not influenced by the lower beak, whereas the position of the entire ISPP complex and the size of the prenasal process are under the epigenetic influence of the lower beak.
(5) For within-vowel measurements made a constant time from the nasal consonant, prenasal vowels showed greater nasalization than postnasal vowels.
(6) In normal development the angle between the ventral contour of the interorbital septum and the long axis of the prenasal process increases.
(7) The extent to which a sound segment is analyzed as a single unit or a cluster is considered with reference to prenasalized stops in Moru.
(8) After surgical removal of the prospective lower beak at stage 29, the position of the entire ISPP complex was altered in stage-38 embryos and the prenasal process showed elongation.
Prenatal
Definition:
(a.) Being or happening before birth.
Example Sentences:
(1) The prenatal risk determined by smoking pregnant woman was studied by a fetal electrocardiogram at different gestational ages.
(2) Although chronologic age may not be a good predictor of pregnancy outcome, adolescents remain a high-risk group due to factors which are more common among them such as biologic immaturity, inadequate prenatal care, poverty, minority status, and low prepregnancy weight, and because factors associated with an early adolescent pregnancy, such as low gynecologic age, may continue to influence the outcome of subsequent pregnancies.
(3) Further improvements in the prognosis of low birthweight infants will depend to a large extent on prenatal prevention of disease.
(4) Cloning of the A-T allele(s) will assist in the early or prenatal diagnosis of A-T and provide a firm basis for determining who, in the general population, carries this gene and is therefore at a high risk of cancer.
(5) Governmental officials as well as medical scientists in Taiwan have worked hard in recent years to develop and to implement various measures, such as prenatal diagnosis and neonatal screening, to lower the incidence of hereditary diseases and mental retardation in the population.
(6) The relationship between certain prenatal and background variables and maternal confidence also was assessed.
(7) Results of the present study show that epithelial cells of ciliated columnar type covering vocal cords change remarkably to nonciliated squamous cells between prenatal and postnatal stages.
(8) Women who had little or no prenatal care were oversampled, so this study is not representative of the New York City population.
(9) The first is that the supposed exaggerated winter birthrate among process schizophrenics actually represents a reduction in spring-fall births caused by prenatal exposure to infectious diseases during the preceding winter--i.e., a high prenatal death rate in process preschizophrenic fetuses.
(10) Tay-Sachs disease was diagnosed prenatally on the basis of enzyme assays and the electrophoretic pattern of extracts made from cultured amniotic fluid cells.
(11) These impairments were seen in animals of both sexes, a finding which challenges the view that only females prenatally treated with nicotine show deficits in maze learning.
(12) structural malformations, all congenital defects, and all disorders or abnormalities with possible prenatal etiology.
(13) It is concluded that prenatal sensitization to the immunogenic preparation used is unlikely to have occurred.
(14) In particular, recent work has shown a relationship between early (prenatal) exposure to lead and delayed cognitive development.
(15) Thermostability of placental catalase increases with prenatal development, while the enzyme from fetal liver remains moderately heat-stable throughout the gestation.
(16) The births were categorized by maternal age, the presence or absence of four putative risk factors, and the provision or nonprovision of early prenatal care.
(17) The 27 women who were interviewed had sought prenatal care early, late or not at all.
(18) A case of low atresia of the ileum, diagnosed prenatally by real-time ultrasound scanning, is presented.
(19) Abnormal prenatal findings included maternal pre-eclampsia, fetal growth retardation, and progressive intracranial sonolucency of the trisomic fetus.
(20) Prenatal causes of sensorineural hearing loss in children may be genetic or nongenetic, the deafness occurs alone or with other abnormalities.