(n.) Something appended to, or accompanying, a principal or greater thing, though not necessary to it, as a portico to a house.
(n.) A subordinate or subsidiary part or organ; an external organ or limb, esp. of the articulates.
Example Sentences:
(1) The astrocytes had generally two types of processes: (1) thread-like processes of relatively constant width with few ramifications and few lamellar appendages and (2) the sinuous processes with clusters of lamellar appendages.
(2) After completion of the biopsy, a J-shaped 5F bipolar pacing lead was inserted via the sheath and positioned with the lead tip directed medially against the interatrial septum or right atrial appendage.
(3) The purpose of this study is to determine the sensitivity and specificity of two dimensional echocardiography in the diagnosis of thrombosis of the left atrial appendage.
(4) Thus careful examination of standard ECG leads for paced P waves of low amplitude, prolonged duration and specific morphology can help in confirming atrial capture following pacing stimulus from right atrial appendage.
(5) The results indicate that position along the appendage does not influence the developmental sequence of events of regeneration, but that it does influence the rate of growth and the structures to be replaced.
(6) The appendages were about 125 x 30 A; the central ring had an outer diameter of approximately 100 A and an inner diameter of 40 A.
(7) In this last region, we can find a more or less reduced true tail or a terminal appendage without vertebral element.
(8) Before therapy considerable destructive changes in nerve fibers were seen, i. e. Schwann cell cytoplasm and nerve cell appendages edemas, no neural tubes in the appendages.
(9) Of 70 children scrotal explorations, torsion of appendages was found in 33 cases (47%).
(10) Synaptic contacts (GRAY I) are established with the grape-like appendages in the branching zone of P-neuron dendrites.
(11) Of the 84 adolescent scrotal explorations performed, 72 (86%) had torsion of testis, and 8 (9%) had torsion of appendages.
(12) Electron microscopy reveals that Toh+ amacrine cells are postsynaptic to amacrine cells and a few bipolar cell terminals in stratum 1 of the inner plexiform layer and are primarily presynaptic to AII amacrine cell bodies and lobular appendages, and to another type of amacrine cell body and amacrine dendrites hypothesized to be the A17 amacrine cell.
(13) A practical classification of left atrial calcification is proposed according to the dominant lesion in each group: (a) Calcification of the left atrial appendage alone (Mitral stenosis).
(14) The innervation and myocardial cells of the human atrial appendage were investigated by means of immunocytochemical and ultrastructural techniques using both tissue sections and whole mount preparations.
(15) Many HBox genes sustain their expression in the appendages of the adult newt.
(16) Wounds made at intervals from 2-24 weeks after irradiation in normal or irradiated ileum were repaired immediately and wrapped in normal or irradiated appendages.
(17) A course of treatment resulted in clinical improvement and appearance of small-diameter appendages of nerve cells on the periphery of nerve fibers that were often not completely covered with Schwann cell appendages.
(18) Among the relay cells, these differences relate to soma and axon diameter, dendritic orientation, and the presence or absence of grapelike dendritic appendages.
(19) When taken together these cases show that just over 50% of the degenerating terminals are presynaptic to spiny appendages and are located within the synaptic clusters (glomeruli) described previously (King, '76).
(20) Surgical techniques used (alone or in combination) included an isolation procedure in 1 patient, cryoablation in 4 patients, and excision of atrial appendages or portions of atrial free walls in 7.
Peduncle
Definition:
(n.) The stem or stalk that supports the flower or fruit of a plant, or a cluster of flowers or fruits.
(n.) A sort of stem by which certain shells and barnacles are attached to other objects. See Illust. of Barnacle.
(n.) A band of nervous or fibrous matter connecting different parts of the brain; as, the peduncles of the cerebellum; the peduncles of the pineal gland.
Example Sentences:
(1) Exposure to short photoperiod increased the number of immunoreactive cell bodies within the anterior hypothalamus and preoptic area (AHPOA) and also increased the optical density for staining of immunoreactive cell bodies in the AHPOA and olfactory peduncle.
(2) In excised regenerating peduncles algae divide before digestive cells, and at the onset of digestive cell division mitotic cells were found to contain almost twice the number of algae as before excision.
(3) ruber, anterodorsolateral midbrain tegmentum, superior and inferior colliculi, pontine gray, cerebral peduncles, medial pontine reticular formation, raphe and vestibular nuclei did not affect the acoustic structure of the calls tested.
(4) The chief characteristics of stage 18 (approximately 44 postovulatory days) are rapidly growing basal nuclei; appearance of the extraventricular bulge of the cerebellum (flocculus), of the superior cerebellar peduncle, and of follicles in the epiphysis cerebri; and the presence of vomeronasal organ and ganglion, of the bucconasal membrane, and of isolated semicircular ducts.
(5) Individual axons leave the ventral peduncle and run dorsally in the transverse plane, entering the dorsal lateral geniculate complex from its ventral edge.
(6) All of those lesions were located in the brainstem or cerebellar peduncles and were identified by NMR, but missed by CT.
(7) This copper-chelating agent produces demyelination in the corpus callosum and superior cerebellar peduncles, and when treatment is stopped, there is rapid remyelination.
(8) In our case there was a "flow" of carcinomatous cells along the fistula, which entered the meningocele, invading the subdural space as far as the peduncle.
(9) The presence of Arg-Phe-amide (RFamide)-like peptides in dense-cored vesicles in neurons of the peduncle of Hydra was demonstrated by immunogold electron microscopy.
(10) The dorsolateral, lateral, and medial pontine nuclei and the middle cerebellar peduncle were effective stimulation-CS sites for training.
(11) Other precerebellar nuclei which send their cerebellipetal axons to the inferior cerebellar peduncle, such as the external cuneate nucleus, the lateral reticular nucleus and the arcuate nucleus, were normally preserved.
(12) In these pontocerebellar infarcts the middle cerebellar peduncle was the core of the affected territory.
(13) Conditioning-test procedures revealed that cerebral peduncle stimulation strongly blocked the thalamocortical (test) response, especially after ethanol, but thalamic stimulation (conditioning) had no effect upon the surface negative wave.
(14) Pathologically there was necrosis of the optic chiasma and focal areas of myelin sheath vacuolation or demyelination in certain areas of the brain, especially in the cerebellar peduncles.
(15) Section of the superior cerebellar peduncle just rostral to the deep cerebellar nuclei results in degenerating axon terminals within the contralateral inferior olive.
(16) These high intensity areas of internal capsule, brain stem and middle cerebellar peduncle on T2 weighted image would be significant for understanding pyramidal tract sign and cerebellar sign of this case.
(17) Postmortem studies were carried out upon five cases and showed either pathological changes in the cerebellum or a lesion involving the cerebellar peduncles in the brain stem.
(18) We concluded that in combination with intra-operative CSF drainage and the sitting position the infratentorial supracerebellar approach allows safe access to lesions situated in an area limited by the posterior part of the third ventricle, the fastigium level and both cerebellar peduncles.
(19) The centre for control of the four eye-muscle nerves in the anterior lateral pedal lobe receives many fibres direct from the statocyst and from the peduncle and basal lobes, but none direct from the optic lobe.
(20) Cerebellar cortex, cerebellar peduncles and spinocerebellar tracts were preserved.