(a.) Having many poles; -- applied especially to those ganglionic nerve cells which have several radiating processes.
Example Sentences:
(1) Immunostained somata are either bipolar or multipolar in appearance.
(2) The succession of excitation spreading about the cardiac ventricles was studied in 28 dogs using the intramural multipolar technique.
(3) At 15-16 weeks neurons are mostly bipolar although different forms of multipolar cells may be seen.
(4) Moreover, the growth cones of monopolar neurons, which are likely to be associated with the axonal processes, differed from those of multipolar neurons, which might be related to dendritic terminals.
(5) The first type included large multipolar neurons with triangular or polygonal perikarya and typically 3-5 dendrites emerging from the poles of each cell.
(6) Multipolar cells with cell bodies distal (MP1) or proximal (MP2) to the plexiform layer send processes to several cartridges.
(7) These multipolar CGRP-containing neurons are preferentially concentrated in the external medial and external lateral subnuclei, in the ventral aspect of the parabrachial nucleus.
(8) Three morphologically distinct types of GABA-immunoreactive (GABA-ir) cell bodies were observed, multipolar neurons in the lateral grey cell column, apparently bipolar cells in the ventral aspect of the dorsal horn, and small liquor-contacting cells surrounding the central canal.
(9) Type II neurons had multipolar or polygonal cell bodies, which measured an average 31 micrometer by 43 micrometer and emitted four to seven primary dendrites.
(10) Type 2 multipolar cells are large neurons endowed with numerous primary spiny dendrites constituting a wide round dendritic field and with a thick axon.
(11) In all multipolar neurons the fine structure of the initial segment has the same pattern, whether or not the axon is ensheathed in myelin.
(12) Like Colcemid, however, prolonged arrest in mitosis with N(2)O led to an increased incidence of multipolar spindles.
(13) Light and electron microscope studies on normal and experimental material in the lateral superior olive (LSO) of cat revealed the presence of three types of neurons: (i) fusiform cells characterized by the large number of terminals articulating with them and projecting to the nuclei of the lateral lemniscus (NLL) and central nucleus of the inferior colliculus (CNIC) (ii) marginal cells embedded in the neuropil of the fibrous capsule and sharing input and output characteristics with the fusiform neurons (iii) multipolar cells with spinous dendrites, local axonal spread and synaptic relation restricted to few afferents only.
(14) Neurones in the central cervical nucleus were multipolar, had mean equivalent diameters of about 24 microns, and their axons ascended on the contralateral side of the spinal cord.
(15) Incubation of vestibular ganglion cells from the rat fetus was successfully done demonstrating bipolar and multipolar cells in the cell cultures produced.
(16) After stopping the drug action the cytochalasin B-induced multinucleate cells continue to divide by multipolar mitosis.
(17) This study prospectively compares multipolar electrocoagulation and injection therapy in high-risk patients with bleeding ulcers.
(18) Pyramidal neurons, fusiform neurons, multiapical pyramidal cells, inverted pyramidal cells, fan shaped neurons and multipolar neurons with large descending axons were interpreted as being the main source of long projection and association connections.
(19) Furthermore, Hynobius eggs fertilized by natural mating incorporated only one sperm nucleus, and experimentally polyspermic eggs underwent multipolar division.
(20) To determine whether changes in the capacity to develop dendrites might occur with aging in vitro, ganglia were removed from prenatal rats and grown as explants for 3 weeks in the presence of non-neuronal cells; under these conditions, prenatal neurons within the explant became multipolar.
Unipolar
Definition:
(a.) Having, or acting by means of, one pole only.
(a.) Having but one pole or process; -- applied to those ganglionic nerve cells which have but one radiating process; -- opposed to multipolar.
Example Sentences:
(1) Bipolar affective illness were more frequent in the families of bipolar than unipolar probands.
(2) A case of a unipolar surgical electrocautery-induced runaway pacemaker is described.
(3) Twenty-one rats were divided into two groups: the control group which received no galvanic stimulation, and the galvanically stimulated group which received anodal galvanic stimulation (unipolar monoauricular, 5 mA in intensity, 500 msec of duration, 1 Hz in frequency) for 30 minutes.
(4) Unipolar rather than bipolar electrodes were used as they rpovided more reliable stimulation and more satisfactory electrograms for detection.
(5) A modified CWS technique using an external pulse generator (pulse width = 40 msec) ordinarily used for transcutaneous cardiac pacing was tested in 74 patients (40 with unipolar and 34 with bipolar DDD devices).
(6) The relationship of response to neuroleptic dose and desipramine plasma concentration was examined in 31 patients with unipolar delusional depression.
(7) RBC Ca++ adenosine triphosphatase (ATPase) was lower in unipolar and control subjects than in bipolar depressed and manic patients.
(8) Eighty-seven unipolar electrocardiograms distributed over the anterior chest and the back were recorded simultaneously before and after the submaximal treadmill exercise.
(9) 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).
(10) The results also suggest that there is some symptomatic overlap between schizophrenia and affective disorders regarding a disturbance in social relatedness predominant over a disturbance in mood (for unipolar states) and a disturbance in thought predominant over a disturbance in mood (for bipolar states).
(11) An early sleep GH increase was found in all but one of the normal men, but was absent in seven of the eight unipolar depressed patients, who had instead a presleep increase.
(12) Following an earlier report, plasma cortisol-binding capacity (CBC) was estimated in a new series of 11 men with unipolar depression and 11 men with bipolar illness admitted to hospital.
(13) The incidence of insulation break in this polyurethane unipolar electrode is uncommon and occurs at further stress points.
(14) No differences in magnesium levels were found in relation to diagnosis (unipolar, bipolar), sex and age.
(15) Patients with unipolar depression showed a significantly lower ratio of the metabolic rate of the caudate nucleus, divided by that of the hemisphere as a whole, when compared with normal controls and patients with bipolar depression.
(16) Although clinical series have shown success rates for bipolar prostheses as good as those for unipolar prostheses, the intended advantages have not been clearly demonstrated.
(17) Unipolar and bipolar leads are of similar reliability, apart from a number of specific bipolar polyurethane leads which have been identified.
(18) Animals were studied hemodynamically and with unipolar electrocardiographic mapping acutely and then were studied after a week and killed.
(19) Unipolar and bipolar intracardiac electrograms of NSR and 23 episodes of ventricular tachycardia (VT) from 23 patients were obtained from a right ventricular apex electrode catheter during routine electrophysiology studies.
(20) Survival curves were used to analyze the relationship between chronicity of depression and hospital course in 48 adolescents with unipolar major depression.