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Neuronal control of swimming in jellyfish: a
Neuronal control of swimming in jellyfish: a

... Then, “…much more remarkable does this fact become when we find that no two of these constituent nerve fibres are histologically continuous with one another”. Romanes recognized that “no…anatomical continuity exists, but… physiological continuity is maintained by some process of physiological induct ...
AANA Journal Course - American Association of Nurse Anesthetists
AANA Journal Course - American Association of Nurse Anesthetists

... phosphodiesterase inhibitors.13 The latter is clinically relevant because it is a mainstay therapy in patients with pulmonary hypertension. As a rule, drugs with vasodilating effects will negatively affect HPV. Volatile anesthetics inhibit HPV in a dosedependent manner.13 Curiously, propofol, which ...
connections of the hypothalamus and preoptic area with nuclei of
connections of the hypothalamus and preoptic area with nuclei of

... nucleus (Fig. 4, R76). After injections into other amygdaloid nuclei no HlZP labeled cells were seen in the vent.r8al plremammillary nucleus (F'ig. 4, R95, R94, R60 and Fig. 5, R20). The HRP labeled cells in the posterior hypothalamic nucleus. In the posterior hypothalamic nucleus only single HRP la ...
Ectopic expression of either the Drosophila
Ectopic expression of either the Drosophila

... Patel et al. (1989) have shown that five of the segment polarity genes (gooseberry, patched, Cell, wingless and hedgehog) cause specific defects in neurogenesis, while two other segment polarity mutants (fused and armadillo) have relatively normal CNS patterns. Only mutations in the patched and goos ...
Control of Appetite and Food Preference by NMDA Receptor and Its
Control of Appetite and Food Preference by NMDA Receptor and Its

... melanocortin system is capable of regulating mesocorticolimbic activity and food seeking behavior [29]. In summary, internal metabolic and physiological signals can affect both aspects of appetite, and the homeostatic system do communicate with the reward system to control the feeding behavior. Obes ...
Central Topography of Cranial Motor Nuclei Controlled by
Central Topography of Cranial Motor Nuclei Controlled by

... features of vertebrate central nervous system (CNS) organization [1]. Nuclei are clusters of soma of functionally related neurons and are located in highly stereotyped positions. Establishment of this CNS topography is critical to neural circuit assembly. However, little is known of either the cellu ...
Rich-club organization in effective connectivity among cortical neurons
Rich-club organization in effective connectivity among cortical neurons

... Many studies have focused on communication networks between cortical brain regions. In contrast, very few studies have examined communication networks within a cortical region. This is the first study to combine such a large number of neurons (several hundred at a time) with such high temporal resol ...
Weber et al. - 2000
Weber et al. - 2000

... in several parallel streams, the retinogeniculate projection in primates typically is described as consisting of only two major pathways, the M-pathway representing the projection through the magnocellular layers and the P-pathway representing the projection through the parvocellular layers. Functio ...
Distinct Functions of 3 and V Integrin Receptors
Distinct Functions of 3 and V Integrin Receptors

... Changes in the adhesive behavior of neurons in different regions of the developing cerebral wall are reflected in distinct changes in cell function, shape, process extension, and cell–cell attachment (Rakic et al., 1974). To evaluate the paradigm that specific cell–cell recognition, adhesion interac ...
Galanin-like peptide: a key player in the homeostatic regulation of
Galanin-like peptide: a key player in the homeostatic regulation of

... GALP is mainly produced in the hypothalamic arcuate nucleus and is involved in the regulation of feeding behavior and energy metabolism, with GALP-containing neurons forming networks with several feeding-regulating peptide-containing neurons. The effects of GALP on food intake and body weight are co ...
PDF Document
PDF Document

... (ASICs), are widely expressed in the peripheral and central nervous system. We hypothesized that activation of ASICs requires the formation of local pockets or “microdomains” of decreased pH as there is evidence that this may occur physiologically at synapses38, where ASICs are concentrated and have ...
Alexander et al., 2009
Alexander et al., 2009

... through one of four canonical GPCR cascades: (1) Gq-mediated pathways that increase excitability and enhance neural firing (Alexander et al., 2009), (2) Gi/o-mediated pathways that result in presynaptic inhibition and silencing of neural activity (Armbruster et al., 2007; Stachniak et al., 2014), (3 ...
Efficient Recruitment of Layer 2/3 Interneurons by Layer 4 Input in
Efficient Recruitment of Layer 2/3 Interneurons by Layer 4 Input in

... software Rembrandt II, and average length density maps of the presynsmaller intervals resulted in a successive rundown of EPSP amplitudes. The aptic axons and the postsynaptic dendrites were constructed. Pairs were long interval between sweeps allowed the recording of only low numbers of sorted acco ...
MSc Thesis Template Document
MSc Thesis Template Document

... brain’s activity is not yet fully defined and remains a huge research area. This project attempts to approach and understand the diversifications of brain’s responses while interfering with different situations. The aim is to observe and notice brain’s reactions to an external stimulus. Neural activ ...
Using calcium imaging to understand function and learning in L2/3
Using calcium imaging to understand function and learning in L2/3

... differed  in  whisker  tuning  and  sparseness,  suggesting  these  intermingled  populations  send   disparate  information  to  their  targets.  Thus,  sparse  coding  in  L2  reflects  heterogeneous  sensory   tuning,  low  average  response ...
Brainstem (II)
Brainstem (II)

... ‐‐ silent during sleep, active during wakefulness   ‐‐ form part of the ascending reticular activating system ‐ Reticular formation in the lateral part of medulla  ‐‐ send fibers to spinal cord ‐ Solitary nucleus and dorsal motor nucleus of vagus ...
MSH-induced inhibition of oxytocin cells
MSH-induced inhibition of oxytocin cells

... dendritic and systemic release of oxytocin (34). Central injections of ␣-MSH or MC4 agonists decrease the electrical activity of oxytocin cells and, consequently, reduce peripheral oxytocin secretion. However, ␣-MSH induces oxytocin release from dendrites in isolated SON, probably as a consequence o ...
Basal Ganglia Outputs Map Instantaneous Position Coordinates
Basal Ganglia Outputs Map Instantaneous Position Coordinates

... Subjects and surgery. All procedures were approved by the Duke University Institutional Animal Care and Use Committee. Ten male C57BL6/J mice (25–31 g) were used in the experiments. Detailed procedures for surgeries have been described previously (Fan et al., 2011, 2012; Rossi et al., 2013a). Sixtee ...
the primate amygdala: neuronal representations of
the primate amygdala: neuronal representations of

... some neurons with responsiveness to the taste of food. The investigation was performed in macaques in order to make it as relevant to understanding the operation of this system in humans as possible, and in the context that the taste system is differently connected in rodents and primates, with tast ...
Chapter 8 PowerPoint
Chapter 8 PowerPoint

... Several neurons send information to one other Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
chapt13_lecture
chapt13_lecture

... • descending tracts - carry motor signals down the brainstem and spinal cord • involves two neurons – upper motor neuron originate in cerebral cortex or brainstem and terminates on a lower motor neuron – lower motor neuron in brainstem or spinal cord • axon of lower motor neuron leads the rest of th ...
Abstract The cochiear nucleus of the barn owl is composed of two
Abstract The cochiear nucleus of the barn owl is composed of two

... where previously there had been none. This was especially true for high frequency neurons. In cases where there is a weak modulation of the period histogram, the criterion of a positive phase shift with increased frequency can be used to discern physiologically related phase locking. This method is ...
Quantified Distribution of the Noradrenaline Innervation in the
Quantified Distribution of the Noradrenaline Innervation in the

... respective counting windows and abbreviated as follows: pyr, stratum pyramidale; mol. stratum moleculare; or, stratum oriens; luc,stratum lucidum; rad, stratum radiatum; lmol, stratum lacunosum-moleculare; g, granule cell layer; pm, polymorph cell layer. Even at this low magnification, the numerous ...
No Slide Title
No Slide Title

... • descending tracts - carry motor signals down the brainstem and spinal cord • involves two neurons – upper motor neuron originate in cerebral cortex or brainstem and terminates on a lower motor neuron – lower motor neuron in brainstem or spinal cord • axon of lower motor neuron leads the rest of th ...
Circadian and histaminergic regulation of the sleep
Circadian and histaminergic regulation of the sleep

... histamine into the basal forebrain region caused a significant increase in the high θ- and γrange power throughout infusion period, but the δ-wave activity during non-rapid eye movement slow-wave sleep remained similar to those of the control. We conclude from our data that the circadian process may ...
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Circumventricular organs

Circumventricular organs (CVOs) are structures in the brain that are characterized by their extensive vasculature and lack of a normal blood brain barrier (BBB). The CVOs allow for the linkage between the central nervous system and peripheral blood flow; additionally they are an integral part of neuroendocrine function. The lack of a blood brain barrier allows the CVOs to act as an alternative route for peptides and hormones in the neural tissue to the peripheral blood stream, while still protecting it from toxic substances. CVOs can be classified into (a) sensory and (b) secretory organs. The sensory organs include the area postrema (AP), the subfornical organ (SFO) and the vascular organ of lamina terminalis. They have the ability to sense plasma molecules and then pass that information into other regions of the brain. Through this, they provide direct information to the autonomic nervous system from the systemic circulation. The secretory organs include the subcommissural organ (SCO), the posterior pituitary, the pineal gland, the median eminence and the intermediate lobe of the pituitary gland. These organs are responsible for secreting hormones and glycoproteins into the peripheral vascular system using feedback from both the brain environment and external stimuli.All of the circumventricular organs, besides the SCO, contain extensive vasculature and fenestrated capillaries which leads to a ‘leaky’ BBB at the site of the organs. Furthermore, all CVOs contain neural tissue, allowing them to play a role in the neuroendocrine system. It is highly debated if the choroid plexus can be included as a CVO. It has a high concentration of fenestrated capillaries, but its lack of neural tissue and its primary role of producing cerebrospinal fluid (CSF) usually excludes the choroid plexus from the CVO classification.Research has also linked CVOs to body fluid regulation, cardiovascular functions, immune responses, thirst, feeding behavior and reproductive behavior.
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