Morphological and Quantitative Study of Neurons in the Gracile
... size and shape; 2) density of dendritic tree and 3) presence or absence of different types of spines and/or appendages on dendrites and/or cell bodies. Type I Neurons: These multipolar or elongated neurons (Figure 2) represented the largest impregnated neuronal type in the Gr. They had very large so ...
... size and shape; 2) density of dendritic tree and 3) presence or absence of different types of spines and/or appendages on dendrites and/or cell bodies. Type I Neurons: These multipolar or elongated neurons (Figure 2) represented the largest impregnated neuronal type in the Gr. They had very large so ...
Vision`s First Steps: Anatomy, Physiology, and Perception in the
... The functional anatomy of the retina is enormously rich and complicated. A short overview is provided here, to set a basis to understand the next few stages of the visual hierarchy. The three nuclear layers are the photoreceptor layer (which lies on the back on the retina, farthest from the light co ...
... The functional anatomy of the retina is enormously rich and complicated. A short overview is provided here, to set a basis to understand the next few stages of the visual hierarchy. The three nuclear layers are the photoreceptor layer (which lies on the back on the retina, farthest from the light co ...
Location and connectivity determine GABAergic interneuron survival in the brains... South Hampshire sheep with CLN6 neuronal ceroid lipofuscinosis
... neurons positive to parvalbumin from the affected cortex became apparent at four months of age and had become profound by 19 months. The extent of loss varied markedly between regions, as to a lesser extent did the loss of somatostatin positive neurons. Conversely calretinin, calbindin and neuropept ...
... neurons positive to parvalbumin from the affected cortex became apparent at four months of age and had become profound by 19 months. The extent of loss varied markedly between regions, as to a lesser extent did the loss of somatostatin positive neurons. Conversely calretinin, calbindin and neuropept ...
Ethanol Neurotoxicity in the Developing Cerebellum
... growth, and maturation of neurons in early brain development as well as in adult brains [54,55]. BDNF promotes neuronal survival by the increased expression of pro-survival protein, Bcl-2 and via activation of CREB signaling pathway. Binding of BDNF to its receptor, TrkB, activates the MAP kinase, p ...
... growth, and maturation of neurons in early brain development as well as in adult brains [54,55]. BDNF promotes neuronal survival by the increased expression of pro-survival protein, Bcl-2 and via activation of CREB signaling pathway. Binding of BDNF to its receptor, TrkB, activates the MAP kinase, p ...
Cuneiform Neurons Activated during
... data from AS-carbachol cats with those from animals in quiet wakef ulness. In the present report, we examined, as before, two control cats in which the same procedures were followed, except that 0.1 l of saline was injected instead of carbachol. Four additional control animals, which were awake, we ...
... data from AS-carbachol cats with those from animals in quiet wakef ulness. In the present report, we examined, as before, two control cats in which the same procedures were followed, except that 0.1 l of saline was injected instead of carbachol. Four additional control animals, which were awake, we ...
Human brainstem preganglionic parasympathetic
... preganglionic neurons with axons exiting in VII and IX cranial nerves. Other brainstem parasympathetic preganglionic neurons (with axons exiting in III and X) do not appear to contain markers for NOS (Kowall and Mueller, 1988; W. P. Gai and W. W. Blessing, unpublished observations). The rostrally lo ...
... preganglionic neurons with axons exiting in VII and IX cranial nerves. Other brainstem parasympathetic preganglionic neurons (with axons exiting in III and X) do not appear to contain markers for NOS (Kowall and Mueller, 1988; W. P. Gai and W. W. Blessing, unpublished observations). The rostrally lo ...
Overlapping representation of primary tastes in a defined
... similar finding was described in humans using functional magnetic resonance imaging (Schoenfeld et al., 2004). These findings contrast a recent 2-photon (2P) imaging study in mice (Chen et al., 2011), where large clusters of neurons responding only to a single taste quality, including a posterior bi ...
... similar finding was described in humans using functional magnetic resonance imaging (Schoenfeld et al., 2004). These findings contrast a recent 2-photon (2P) imaging study in mice (Chen et al., 2011), where large clusters of neurons responding only to a single taste quality, including a posterior bi ...
Comparison of Sympathetic and Parasympathetic Divisions
... chemoreceptors, are distributed throughout the body. Mechanoreceptors sense pressure, stretch, or tension. Slow-adapting mechanoreceptors sense fullness in the bowel, bladder, and stomach. Fast-adapting mechanoreceptors sense the movement in the lungs and arteries. The second receptor type, chemorec ...
... chemoreceptors, are distributed throughout the body. Mechanoreceptors sense pressure, stretch, or tension. Slow-adapting mechanoreceptors sense fullness in the bowel, bladder, and stomach. Fast-adapting mechanoreceptors sense the movement in the lungs and arteries. The second receptor type, chemorec ...
Connections Between the Retrosplenial Cortex and the
... second group of axons courses through layer I of the postsubiculum to the presubiculum, where the majority of these axons appear to terminate in layer I , but a small number of terminals also extend to postsubiculum and parasubiculum. Retrosplenial granular a cortex also projects to the contralatera ...
... second group of axons courses through layer I of the postsubiculum to the presubiculum, where the majority of these axons appear to terminate in layer I , but a small number of terminals also extend to postsubiculum and parasubiculum. Retrosplenial granular a cortex also projects to the contralatera ...
Tyrosine Hydroxylase in the Rat Parabrachial Region: Ultrastructural
... Axons and axon terminals with TH-I comprised the remaining 83% (524 out of 625) of all labeled profiles in the dorsal, ventral, central, and external nuclei of the PBR. The axons were primarily small (0.1-0.2 pm in diameter) and unmyelinated (Fig. 4A). However, occasionally a slightly larger (0.3-0. ...
... Axons and axon terminals with TH-I comprised the remaining 83% (524 out of 625) of all labeled profiles in the dorsal, ventral, central, and external nuclei of the PBR. The axons were primarily small (0.1-0.2 pm in diameter) and unmyelinated (Fig. 4A). However, occasionally a slightly larger (0.3-0. ...
Neuropeptidergic Organization of the Suprachiasmatic Nucleus in
... adaptations to underground existence [54,55]. This Spalax superspecies complex includes several chromosomal species ranging from the Northern part of Africa, through the near-east to Turkey and Southern Russia [54]. The subcutaneous atrophied eye measures less than 700 mm in axial length [14,16,65], ...
... adaptations to underground existence [54,55]. This Spalax superspecies complex includes several chromosomal species ranging from the Northern part of Africa, through the near-east to Turkey and Southern Russia [54]. The subcutaneous atrophied eye measures less than 700 mm in axial length [14,16,65], ...
Intrinsic laminar lattice connections in primate visual cortex
... HRP injections were made in the lateral convexity of striate cortex. Generally two injections (each estimated as 500-750 pn in diameter) were placed close together, sometimes merging into one large injection site (for instance, SM4 in Figure 1C-G, where the injection is estimated as 1.2 pm across). ...
... HRP injections were made in the lateral convexity of striate cortex. Generally two injections (each estimated as 500-750 pn in diameter) were placed close together, sometimes merging into one large injection site (for instance, SM4 in Figure 1C-G, where the injection is estimated as 1.2 pm across). ...
Directional guidance of interneuron migration to the cerebral cortex
... developing striatum (Hamasaki et al., 2001). It seems unlikely, however, that the same mechanism of repulsion from the ventricular zone can account alone for such extremely divergent migratory patterns in vivo, and it is therefore expected that additional mechanisms exist to delineate each of the di ...
... developing striatum (Hamasaki et al., 2001). It seems unlikely, however, that the same mechanism of repulsion from the ventricular zone can account alone for such extremely divergent migratory patterns in vivo, and it is therefore expected that additional mechanisms exist to delineate each of the di ...
The neuronal structure of the medial geniculate body in the pig
... pear-shaped neurons, the smallest cells of the pig MGB that have similar arborisation of the dendrites to the multipolar and triangular neurons were not reported in MGB of other mammals. Small neurons were described as Golgi type II neurons in the cat [9, 11, 31], rat [27], and in the opossum [34]. ...
... pear-shaped neurons, the smallest cells of the pig MGB that have similar arborisation of the dendrites to the multipolar and triangular neurons were not reported in MGB of other mammals. Small neurons were described as Golgi type II neurons in the cat [9, 11, 31], rat [27], and in the opossum [34]. ...
Short-Lasting Classical Conditioning Induces
... the "trained" row B of whiskers and the control row B, unstimulated during the behavioral training, on the other side of the snout. We previously ascertained (Chmielowska et al., 1986; Kossut et al., 1988) that there were no ipsilateral changes of 2DG uptake produced by unilateral whisker stimulatio ...
... the "trained" row B of whiskers and the control row B, unstimulated during the behavioral training, on the other side of the snout. We previously ascertained (Chmielowska et al., 1986; Kossut et al., 1988) that there were no ipsilateral changes of 2DG uptake produced by unilateral whisker stimulatio ...
Central Nervous System (CNS) CNS – composed of the brain and
... Afferent fibers from smell receptors in the superior nasal cavities send impulses along olfactory tracts and relay them to the olfactory cortex ...
... Afferent fibers from smell receptors in the superior nasal cavities send impulses along olfactory tracts and relay them to the olfactory cortex ...
The limbic system
... The medial preoptic area of the hypothalamus is a key structure in the central control of male sexual behavior. Chemosensory efferents from the main and accessory olfactory systems project to the medial amygdala (MeA). MeA sends direct and indirect innervations (through the bed nucleus of the stria ...
... The medial preoptic area of the hypothalamus is a key structure in the central control of male sexual behavior. Chemosensory efferents from the main and accessory olfactory systems project to the medial amygdala (MeA). MeA sends direct and indirect innervations (through the bed nucleus of the stria ...
The occipitoparietal pathway of the macaque monkey: comparison
... macaque striate cortex by Brodmann (1909). The main differences between Hassler’s and Brodmann’s nomenclatures are summarized in Table 2. We have decided to use the Hassler scheme because, based on cytology and efferent connections, there is now ample evidence to support the view that some of the su ...
... macaque striate cortex by Brodmann (1909). The main differences between Hassler’s and Brodmann’s nomenclatures are summarized in Table 2. We have decided to use the Hassler scheme because, based on cytology and efferent connections, there is now ample evidence to support the view that some of the su ...
as a PDF
... preganglionic neurons with axons exiting in VII and IX cranial nerves. Other brainstem parasympathetic preganglionic neurons (with axons exiting in III and X) do not appear to contain markers for NOS (Kowall and Mueller, 1988; W. P. Gai and W. W. Blessing, unpublished observations). The rostrally lo ...
... preganglionic neurons with axons exiting in VII and IX cranial nerves. Other brainstem parasympathetic preganglionic neurons (with axons exiting in III and X) do not appear to contain markers for NOS (Kowall and Mueller, 1988; W. P. Gai and W. W. Blessing, unpublished observations). The rostrally lo ...
the evolution of body and brain, and of sensory
... thalamocortical fibers that target the primary visual cortex. Processing of the optic input starts at the retinal level, most important of which is the momentous achievement of turning the absence of photic stimuli in the visual field (dark spots, shadows) into an important source of information, a ...
... thalamocortical fibers that target the primary visual cortex. Processing of the optic input starts at the retinal level, most important of which is the momentous achievement of turning the absence of photic stimuli in the visual field (dark spots, shadows) into an important source of information, a ...
Article PDF
... these experiments is described elsewhere (Reid et al., 1995). In brief, the AP library was derived from 3400 clones containing genomic DNA fragments cloned into the X hoI site of the DAP vector (Fields-Berry et al., 1992). The AP library contains between 100 and 400 distinct retroviral constructs at ...
... these experiments is described elsewhere (Reid et al., 1995). In brief, the AP library was derived from 3400 clones containing genomic DNA fragments cloned into the X hoI site of the DAP vector (Fields-Berry et al., 1992). The AP library contains between 100 and 400 distinct retroviral constructs at ...
Target-specific differences in somatodendritic morphology of layer V
... surgery, the rats were anesthetized with sodium pentobarbital (Nembutal; 42 mg/kg body weight, i.p.), and the heads were immobilized in a stereotaxic apparatus. Injections into the caudate-putamen nucleus (CPu) and the parafascicular nucleus of the thalamus (Pf) were based on coordinates from the at ...
... surgery, the rats were anesthetized with sodium pentobarbital (Nembutal; 42 mg/kg body weight, i.p.), and the heads were immobilized in a stereotaxic apparatus. Injections into the caudate-putamen nucleus (CPu) and the parafascicular nucleus of the thalamus (Pf) were based on coordinates from the at ...
From/To LTM - Ohio University
... Mountcastle as a minicolumn organization [1][3], supports the biological intelligence building in human neocortex. Neurons on different layers of minicolumns are proposed to have specific function in the interaction between STM and LTM. When retrieving information from LTM to STM, particular lay ...
... Mountcastle as a minicolumn organization [1][3], supports the biological intelligence building in human neocortex. Neurons on different layers of minicolumns are proposed to have specific function in the interaction between STM and LTM. When retrieving information from LTM to STM, particular lay ...
Anatomical and Neurochemical Definition of the Nucleus of the Stria
... outlines the whole POM throughout its entire rostral-tocaudal extent (Viglietti-Panzica et al., 1994). VT-ir neurons are found in a periventricular position, lining the ependymal wall of the third ventricle, close to the pial surface of the preoptic area and in the nucleus paraventricularis. They ar ...
... outlines the whole POM throughout its entire rostral-tocaudal extent (Viglietti-Panzica et al., 1994). VT-ir neurons are found in a periventricular position, lining the ependymal wall of the third ventricle, close to the pial surface of the preoptic area and in the nucleus paraventricularis. They ar ...
Anatomy of the cerebellum
The anatomy of the cerebellum can be viewed at three levels. At the level of large-scale anatomy, the cerebellum consists of a tightly folded and crumpled layer of cortex, with white matter underneath, several deep nuclei embedded in the white matter, and a fluid-filled ventricle in the middle. At the intermediate level, the cerebellum and its auxiliary structures can be decomposed into several hundred or thousand independently functioning modules or ""microzones"". At the microscopic level, each module consists of the same small set of neuronal elements, laid out with a highly stereotyped geometry.