What's the difference between appendage and proleg?
Appendage
Definition:
(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.
Proleg
Definition:
(n.) One of the fleshy legs found on the abdominal segments of the larvae of Lepidoptera, sawflies, and some other insects. Those of Lepidoptera have a circle of hooks. Called also proped, propleg, and falseleg.
Example Sentences:
(1) Other proleg motoneurons regress but do not die, indicating that dendritic regression is programmed separately from neuronal death.
(2) The principal locomotory appendages of the Manduca sexta caterpillar, the prolegs, are present on the third through sixth abdominal segments (anal prolegs located on the terminal segment were not included in this study).
(3) In this study we examined activity-dependent changes in the amplitude of the excitatory postsynaptic potentials (EPSPs) evoked in a proleg motoneuron by stimulation of individual planta hair sensory neurons.
(4) The larval-pupal transformation of the tobacco hornworm, Manduca sexta, involves the loss of many larval-specific behaviors, including a simple withdrawal reflex of the abdominal prolegs.
(5) At pupation the prolegs are lost, their muscles degenerate, and some of their motoneurons regress structurally.
(6) Two other differently fated abdominal muscles not associated with the proleg were also studied.
(7) In the present study we identified additional proleg motoneurons and their putative homologs in the non-proleg-bearing segments.
(8) An important technical innovation was the development of an isolated proleg and desheathed ganglion preparation that permits rapid and reversible ionic manipulations and drug applications.
(9) The prolegs bear numerous mechanosensory bristle sensilla, each innervated by an afferent neuron that arborizes within the central nervous system (CNS).
(10) In the mosaic hemisegments, electrical stimulation of PH afferents evoked only a small synaptic depolarization of the proleg motoneurons, similar in amplitude to that recorded in normally developing pupae; thus, the developmental status of the afferents was irrelevant to the loss of the reflex.
(11) As a first step toward investigating the process of functional respecification at the synaptic level, we searched for larval interneurons that affected the activity of proleg motoneurons, and followed these interneurons into the pupal stage.
(12) Interneurons were judged to be individually identifiable based on their effects on proleg motoneuron activity and their anatomical features.
(13) The abdominal prolegs, which are the principal locomotory appendages of the caterpillar, are lost during the larval-pupal transformation.
(14) Cobalt-staining of the proleg MNs and planta hair afferents shows that the afferents terminate in ventral neuropil, and the proleg MNs have an unusual ventral projection into this region.
(15) Following adult emergence all but one of the respecified proleg motoneurons dies.
(16) We have followed the fates of a proleg retractor muscle, PPRM, and its single motoneuron, PPR.
(17) Previously, we found that PH afferents produce monosynaptic excitatory postsynaptic potentials (EPSPs) in proleg retractor muscle motoneurons, the size of which depends on the position of the hair in the PH array.
(18) In the tobacco hornworm caterpillar, tactile stimulation of sensory hairs located on the tip of a proleg (the planta) evokes ipsilateral or bilateral retraction of the prolegs in that segment.
(19) These activity-dependent changes in sensory transmission may contribute to the behavioral plasticity of the proleg withdrawal reflex observed in intact insects.
(20) We have used electrophysiological and anatomical methods to investigate the excitatory neural pathways linking the planta hair afferents and the proleg retractor motoneurons (MNs).