Words similar to pyramidal
Example sentences for: pyramidal
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Thus, for example, in the former, we found NK-ir fibers in the superior colliculus, the restiform body, the pyramidal tract, and in the pontine nuclei, in which in the cat no immunoreactive fibers were found [ 15 ] . Comparing the distribution of cell bodies containing NK in both cat and human brainstems, it seems that the distribution is widespread in the feline (see [ 15 ] ). In both species NK-ir perikarya were found in the periaqueductal gray and in the inferior colliculus.
.. ", together with paralytic, neurotoxic, diarrhetic and ciguatera fish poisoning (FDA website: http://vm.cfsan.fda.gov/~dms/haccp-2f.html) [ 14 ] . Recent behavioral toxicity studies in rodents, have confirmed that domoic acid is a very rapid and potent neurotoxin in newborn rats, at doses far lower than in adult animals [ 15 16 17 ] . Even though hippocampal pyramidal neurons and mossy fiber terminals appear to be selectively targeted in vivo by domoic acid in rat [ 18 ] and cynomolgus monkey brain [ 19 ] , recently domoic acid was shown to affect glutamate uptake by astrocytes in vitro and " ...thus produced neurotoxicity.
Here we see how high heels can be globular or pyramidal, golden or barklike, slim as bending flower stems or thick as beams; straps can be suave ribbons or stiff manacles.
In this manner, inactive cells are brought closer to threshold, enhancing their opportunity to firing together [ 29 30 31 ] . The extracellular resistance is the major determinant of field-effect strength [ 32 ] . Since the extracellular volume fraction in CA1 stradium pyramidal is only 12% compared with approximately 18% in CA3 and granule cells [ 33 ] , the CA1 pyramidal cells are particularly susceptible to field effects.
The γ frequency oscillations (30-100 Hz) are characteristic of responses to sensory input measured by cortical EEG [ 9 ] . In the hippocampal slice preparation, γ oscillations can be evoked by brief, high frequency tetanic stimuli to region CA1 [ 10 11 12 13 ] . The extracellular field potential response during these oscillations takes the form of a train of population spikes in stratum pyramidal at γ and β (15-30 Hz) frequencies [ 14 ] . Intracellular recordings during γ oscillations induced by tetanic stimulation reveal a slow membrane depolarization in conjunction with GABA A receptor-mediated inhibitory postsynaptic potentials [ 11 15 ] . This synaptic inhibition-based γ activity entrains action potential generation in pyramidal neurons, leading to the population spikes at γ band frequencies.
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