منابع مشابه
Mountain excitement
theory? What is its legacy today in biology? Quite a few mathematical fads have burst onto the popular press, promising great new insights into biology: information theory, catastrophe theory, chaos theory, and most recently complexity theory, to name just a few. All were quite useful in their founding fields (except complexity, which has proven slippery to even define), but all failed to live ...
متن کاملNervous control of heart rate during excitement in the adult White Leghorn cock.
TUMMONS,JOHN L., AND PAUL D. STURKIE. Nervous control of heart rate during excitement in the adult White Leghorn cock. Am. J. Physiol. 216(6): 1437-1440. 1969.-The control of heart rate by the sympathetics and parasympathetics during excitement has been studied in the adult White Leghorn cock. The data presented in this study demonstrate that at the basal resting heart rate (BRHR) of 280-290 be...
متن کاملGABA Generates Excitement
In the CNS, gamma-aminobutyric acid (GABA) acts as an inhibitory transmitter via ligand-gated GABA(A) receptor channels and G protein-coupled GABA(B) receptors. Both of these receptor types mediate inhibitory postsynaptic transmission throughout the nervous system. For GABA(A) receptors, this inhibitory action is associated with a hyperpolarization due to an increase in conductance to chloride ...
متن کاملRetrograde Signaling Causes Excitement
Retrograde signaling is a powerful tool to shape synaptic transmission, typically inducing inhibition of transmitter release. A new study published in this issue of Neuron by Carta et al. (2014) now provides strong support for arachidonic acid as a potentiating retrograde messenger.
متن کاملSlowly Building Excitement
While some neurons are tuned to integrate fast and precisely timed inputs, others set behavioral states on much slower timescales. In this issue of Cell, Branco et al. demonstrate that body weight is regulated by hypothalamic neurons using a highly effective form of slow synaptic integration, which is mediated by the voltage gated sodium channel Nav1.7.
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ژورنال
عنوان ژورنال: Journal of Graduate Medical Education
سال: 2013
ISSN: 1949-8357,1949-8349
DOI: 10.4300/jgme-d-12-00292.1