When activated, these interneurons release either enkephalin or dynorphin ( endogenous opioid neurotransmitters ), which bind to mu opioid receptors on the axons of incoming C and A-delta fibers carrying pain signals from nociceptors activated in the periphery.

When I show up he will know you are a good wife to have told him about it ''.

When the Know-nothings get control, it will read, All men are created equal except Negroes and foreigners and Catholics.

When the reactionary response is thus bolstered by an intellectual defense, the characteristics of that defense are explicable only in terms of the basic attitudes of unanalyzed reaction.

When combined with the metaphysical notion that pure forms of this universe are best appreciated when least embodied in a material substratum, it becomes clear that while earth will be dross on a scale of material-formal ratios, celestial bodies will be of a subtle, quickened, ethereal existence, in whose embodiment pure form will be the dominant component and matter will be absent or remain subsidiary.

She used to tell me, `` When I stand there and look at the flag blowing this way and that way, I have the wonderful, safe feeling that Americans are protected no matter which way the wind blows ''.

When we consider the disorganized state of the world community, and the legacy of predispositions adversely directed against all who are identified as Jews, it is obvious that the struggle for the minds and muscles of men needs to be prosecuted with increasing vigor and skill.

When these fields are surveyed together, important patterns of relationship emerge indicating a vast community of reciprocal influence, a continuity of thought and expression including many traditions, primarily literary, religious, and philosophical, but frequently including contact with the fine arts and even, to some extent, with science.

When different colors are used, she is just as likely to color trees purple, hair green, etc..

When finally the two bedraggled men reach their friend's home, Voltaire's fears are once again aroused.

`` When are you to leave ''??

When the roof blocks are all in place, the final rows of wall blocks are mortared into position.

When the aid operations are reorganized the Peace Corps should remain a semi-autonomous, functional unit.

When the budget goes to trustees for approval it is the president's budget, to which his faith and credit are committed ; ;

When they have 4 to 6 leaves and are thrifty little plants, it's time to set them out where they are to remain.

When aircraft are no longer helpless on airfields, they are no longer vulnerable to Aj.

When more than two figures are separated by subtraction symbols the subtraction must be carried out from the left to right if the result is to be correct.

When they're on, the top edges are planed even with the sheer batten.

When painting, Mason's physical eyes are half-closed, while his mind's eye is wide open, and this circumstance accounts in part for the impression he wishes to convey.

When improvements are recommended in working conditions -- such as lighting, rest rooms, eating facilities, air-conditioning -- do you try to set a measure of their effectiveness on productivity??

When sufficiently accurate and complete measurements are available, it will be possible to set limits on the thermal and electrical characteristics of the surface and subsurface materials of the moon.

When some thirteen records of newly and recently born individuals are collated, little or no correlation between length and distribution can be detected.

When three dice are tossed repeatedly, what is the probability that the number of aces is 0 ( or 1, or 2, or 3 )??

When the number of particles in one excited state exceeds the number of particles in some lower-energy state, population inversion is achieved and the amount of stimulated emission due to light that passes through is larger than the amount of absorption.

When a normally functioning motor nerve is stimulated it releases the neurotransmitter acetylcholine, which transmits the impulse to a muscle or organ.

When this happens due to the presence of the electromagnetic field from a photon, a photon is released in the same phase and direction as the " stimulating " photon, and is called stimulated emission.

When the pancreas is stimulated by cholecystokinin, it is then secreted into the first part of the small intestine ( the duodenum ) via the pancreatic duct.

When the optical arrangement is such that the emission is stimulated by 694-nanometer photons reflecting back and forth between two mirrors, the emission grows strongly in intensity.

When they met in a club Aykroyd frequented, Aykroyd put on a blues record to play in the background, and it stimulated a fascination with blues in Belushi, who was primarily a fan of heavy rock bands at the time.

When stimulated by light, rhodopsin splits into a protein and a cofactor: opsin and all-trans-retinal ( a form of vitamin A ).

When ants come out of the nest searching for food, they are stimulated by the pheromone to follow the trail towards the food source.

When only one eye is stimulated, both eyes contract equally.

When stimulated by a click, its eyes turn red and fangs pop out.

When asked to imagine sensorily, one imagines C-fibres being stimulated ; if asked to imagine sympathetically, one puts oneself in a conscious state resembling pain.

Most transmissions occur in two stages: When stimulated, the preganglionic nerve releases ACh at the ganglion, which acts on nicotinic receptors of postganglionic neurons.

When an electrical current is routed to an intracochlear electrode, an electrical field is generated and auditory nerve fibers are stimulated.

When the trigger hairs are stimulated, an action potential ( mostly involving calcium ions — see calcium in biology ) is generated, which propagates across the lobes and stimulates cells in the lobes and in the midrib between them.

When one pathway into a synapse is stimulated weakly, it produces insufficient postsynaptic depolarization to induce LTP.

When not sufficiently stimulated with early life diseases, the immune system will have too many T < sub > h </ sub > 2 cells present, leading to a greater risk of T < sub > h </ sub > 2 immune disorder.

When the carrier density exceeds that value, the ensuing stimulated emission results in the generation of a large number of photons.

When the ipsilateral striatum of an adult toad was electrically stimulated, inhibitory postsynaptic potentials were induced in binocular tegmental neurons, which affects the visual system of the toad.

When a mining company ends a project after extracting the raw materials from an area of a developing country, the local people are left to manage with the environmental damage done to their community and the long run sustainability of the economic benefits stimulated by the mining company ’ s presence becomes a concern.

When postsynaptic action potential firing occurs prior to presynaptic afferent firing, both presynaptic endocannabinoid ( CB1 ) receptors and NMDA receptors are stimulated at the same time.

When a substrate binds to one enzymatic subunit, the rest of the subunits are stimulated and become active.

When they are not being stimulated, such as in the dark, rod cells and cone cells depolarize and release a neurotransmitter spontaneously.

When the nerve endings are stimulated, sodium enters the neuron, causing depolarization of the nerve and subsequent initiation of an action potential.

When the mast cells are stimulated by pollen and dust, histamine ( and other chemicals ) are released.