Excitability Sentence Examples
Corticosteroids mediate a number of functions of mammalian brain, including blood pressure homeostasis, salt appetite and neuronal excitability.
The loss of sleep to a person of Newton's temperament, whose mind was never fiat rest, and at times so wholly engrossed in his scientific pursuits that he even neglected to take food, must necessarily have led to a very great deal of nervous excitability.
Current clamp and voltage clamp experiments revealed multiple effects of 5-HT on the intrinsic excitability of CN neurons.
His theory of medicine professed to explain the processes of life and disease, and the methods of cure, upon one simple principle - that of the property of" excitability,"in virtue of which the" exciting powers,"defined as being (1) external forces and (2) the functions of the system itself, call forth the vital phenomena" sense, motion, mental function and passion."All exciting powers are stimulant, the apparent debilitating or sedative effect of some being due to a deficiency in the degree of stimulus; so that the final conclusion is that" the whole phenomena of life, health as well as disease, consist in stimulus and nothing else."Brown recognized some diseases as sthenic, others as asthenic, the latter requiring stimulating treatment, the former the reverse; but his practical conclusion was that 97% of all diseases required a" stimulating "treatment.
This nervous excitability was inherited, though' not to the same excess, by Octave, whose mother died in his infancy and left him to the care of the hypersensitive invalid.
Activity dependent excitability changes of nociceptors and mechanoreceptors Sensory neurons of the dorsal root ganglion are functionally heterogeneous.
Vasopressin cells display phasic discharge patterning that reflects bistability in the mechanisms governing membrane excitability.
It also helps to relieve excitability and anxiety.
Drug overdoses cause a range of symptoms, including excitability, sleepiness, confusion, unconsciousness, rapid heartbeat, convulsions, nausea, and changes in blood pressure.
Research has also shown that these behaviorally inhibited children have a decreased threshold of excitability in the area of the brain called the amygdala.
AdvertisementThere appears also to be a specific action of lowering the reflex excitability of the spinal cord.
Sleep is not exhaustion of the neuron in the sense that prolonged activity has reduced its excitability to zero.
If natural sleep is the expression of a phase of decreased excitability due to the setting in of a tide of anabolism in the cells of the nervous system, what is the action of narcotics ?
In bronchitis with profuse expectoration the use of morphine is particularly dangerous, as it is likely to check the cough so necessary for getting rid of the secretion, but in the converse condition it usefully allays the harassing cough by diminishing the excitability of the respiratory centre.
Amongst those which lessen excitability of the brain-cells are opium, morphine, hyoscyamus, chloral, sulphonal, trional, paraldehyde, chloralamide, chloralose, hop and many others.
AdvertisementIf two poisons act on the same tissue, one stimulating and the other paralysing it, the paralysing substance removes the action of the stimulant substance, not by bringing the tissue back to its normal state, but by abolishing its excitability; hence, although life may be saved by such an action, yet it can only be so within certain limits of dosage, because the antagonism is never complete at every point.
But it must be remembered that these conclusions are arrived at by confusing action, reaction, life, excitability, impulse, and rational desire, all under the one word " will," as well as by omitting the involuntary action of intelligence under the pressure of evidence.