What's the difference between neural and neuropore?
Neural
Definition:
(a.) relating to the nerves or nervous system; taining to, situated in the region of, or on the side with, the neural, or cerebro-spinal, axis; -- opposed to hemal. As applied to vertebrates, neural is the same as dorsal; as applied to invertebrates it is usually the same as ventral. Cf. Hemal.
Example Sentences:
(1) By presenting the case history of a man who successively developed facial and trigeminal neural dysfunction after Mohs chemosurgery of a PCSCC, this paper documents histologically the occurrence of such neural invasion, and illustrates the utility of gadolinium-enhanced magnetic resonance scanning in patient management.
(2) Some common eye movement deficits, and concepts such as 'the neural integrator' and the 'velocity storage mechanism', for which anatomical substrates are still sought, are introduced.
(3) Based on our results, we propose the following hypotheses for the neurochemical mechanisms of motion sickness: (1) the histaminergic neuron system is involved in the signs and symptoms of motion sickness, including vomiting; (2) the acetylcholinergic neuron system is involved in the processes of habituation to motion sickness, including neural store mechanisms; and (3) the catecholaminergic neuron system in the brain stem is not related to the development of motion sickness.
(4) This attack can take place during organogenesis, during early differentiation of neural anlagen after neural tube closure or during biochemical differentiation of the brain.
(5) This effect of adrenalectomy on MNE excitability was further demonstrated by recording directly the neostigmine-induced repetitive neural discharges responsible for the muscle fasciculations.
(6) It is also suggested that degenerative changes occur in the dentate gyrus and may be involved in the delayed neural death of CA1 pyramidal cells.
(7) This study examines the morphology of sporadic congenital microphthalmia in 1-day-old chicks, with particular emphasis on the neural retina.
(8) Hence, the absence of NGF receptors on premigratory neural crest and early migratory neural crest cultures was not due to enzymatic alterations of the receptor.
(9) By 3 d in the chick embryo, the first neurons detected by antibodies to Ng-CAM are located in the ventral neural tube; these precursors of motor neurons emit well-stained fibers to the periphery.
(10) In this sense, there is evidence that in genetically susceptible individuals, environmental stresses can influence the long-term level of arterial pressure via the central and peripheral neural autonomic pathways.
(11) Predominantly observed defects included neural crest cells in ectopic locations, both within and external to the neural tube, and mildly deformed neural tubes containing some dissociating cells.
(12) Our results suggest that cAMP may be an important regulator of phenotypic expression in at least some neural crest cell lineages.
(13) The results indicate that the different EEG frequency bands during a given EEG epoch are generated by neural populations in different brain locations.
(14) As a consequence, a neural network, considered as a kind of parallel random automata, delivers an output random field in response to the excitation provided by a random field that represents the activity of some input fibers.
(15) Neural crest cells give rise to various essential tissues in vertebrates.
(16) In the present study, we have compared the phosphorylation state of the fibronectin receptor in motile neural crest and somitic cells, in stationary somitic cells, and in Rous-sarcoma virus transformed-chick embryo fibroblasts, using immunoprecipitation following metabolic labeling.
(17) Neural plate damage, expressed during a critical period of forebrain development, was evaluated 48 h post-insonation.
(18) A theory for the neural control of middle ear aeration is proposed.
(19) Methods of analysis for some deterministic and stochastic variants of the integrate-to-threshold neural coding scheme are presented.
(20) Previous work in our laboratory has shown that neural trauma results in a disparity between oxidative and glycolytic rates.
Neuropore
Definition:
(n.) An opening at either end of the embryonic neural canal.
Example Sentences:
(1) The progressive fusion of the neural folds during stage 10, and the closure of the rostral and caudal neuropores at stages 11 and 12, respectively, are detailed with further precision than hitherto.
(2) This eversion persisted in affected embryos through the time that the posterior neuropore should normally close.
(3) Considered together, the results provided evidence that embryonic conversion of APAP or 7-OH-AAF to the corresponding catechol metabolites may be instrumental in effecting the abnormal anterior neuropore closure observed after exposure of embryos to the respective parent compounds.
(4) Accumulation of hyaluronate and sulfated GAG was greatest in the posterior neuropore and decreased progressively toward the hindbrain where neurulation was already complete.
(5) The rostral neuropore closes towards the end of stage 11.
(6) Some occlusion of the lumen of the neural tube was noted in 4 embryos, all of which had an open rostral neuropore.
(7) And failure in closure of the posterior neuropore and disturbance in the development of the tail bud probably play major role in the morphogenesis of myeloschisis.
(8) The origin of this malformation is a failure of closure of the anterior neuropore which delays the ingrowth of the mesoderm that is destined to form the skull and dura beyond the 10th week of gestation, leaving behind trapped cerebral tissue.
(9) Whereas treatment with RA produced underdeveloped branchial arches, symmetrically cleft cranial defects resulting in openings in rhombencephalic and prosencephalic regions, and exteriorized neural tissue in the caudal neuropore region, VPA produced irregular clefts with wavy margins along the entire length of the neural tube, and an open caudal neuropore without eversion of the neuroepithelium, while producing no detectable effect on the branchial arches.
(10) This was well before closure of the posterior neuropore which occurred at the 21-somite stage.
(11) Finally, the caudal neuropore completely closed at the level of the caudal end of the future 33rd somite.
(12) Additions of 3-OH-APAP (0.1-0.2 mM) but not N-acetyl-p-benzoquinoneimine (NAPQI, 0.1-0.5 mM) to the culture medium elicited the typical neuropore abnormality.
(13) Microscopically, this embryonic failure appears to manifest itself between Hamburger-Hamilton stages 8 and 9 of development and is characterized by a series of retarded developmental processes: closure of the anterior neuropore, brain vesicle differentiation, somite formation, and cardiac development.
(14) Because rapid brain enlargement still occurs after reopening, occlusion probably functions principally in the initial phases of enlargement prior to closure of the posterior neuropore.
(15) The first fusion of the cranial neural folds took place in the occipital somite region, the second fusion in the diencephalic region, and the third at the end of the neural plate, thus leaving two neuropores in the cephalic region.
(16) These data indicate that the susceptible period for induction of these anomalies does not stop at neuropore closure.
(17) These included distortion of the neural folds at the level of the posterior neuropore, vascular damage and hematoma formation, malformation of the notochord, and abnormalities of secondary neurulation.
(18) The caudal end of the posterior neuropore closes dorsal to the developing tail bud.
(19) Numerous pleomorphic inclusions and a few apparently necrotic cells are present in areas bordering the anterior neuropore.
(20) The characteristic features of this stage are 21-29 pairs of somites, incipient or complete closure of the caudal neuropore, and the appearance of upper limb buds.