Sentence examples for which constrict from inspiring English sources

The vessel walls are also sensitive to circulating epinephrine and norepinephrine hormones, small amounts of which constrict the efferent arterioles and large amounts of which constrict all the vessels; and to angiotensin, which is a constrictor agent closely related to renin.

Dr. Norman Rosenthal, a psychiatrist in the Washington area and an expert on depression and anger, says drivers who repeatedly tailgate, trying to pressure the cars in front to move faster or get out of the way, "are always sitting on their arteries," which constrict in response to stress hormones that spew forth from their adrenal glands.

Diminishing household livelihood situations in rural areas is largely attributed to climate uncertainties which constrict crop and livestock performance (Mertz et al. 2009a; Oluoko-Odingo 2011).

There are five historically based campaigns, which constrict the player to specialized and story-backed conditions.

Up-regulation of genes which constrict nematode progression via increased cell wall strenghtening were also detected in PWN-resistant P. thumbergii[ 15].

The lower gate is thought to involve an aperture-like gating motion of the pore-lining inner transmembrane helices which constrict the permeation pathway at the helix bundle crossing (Swartz, 2004; Rapedius et al, 2007; Hibino et al, 2010).

The sharing of the stage, which constricts the performing space for the circus troupe and may have inhibited the inclusion of acts like bicycle riding, appears to have imposed a certain sameness on the repertory.

MEDICATIONS Although not always needed, certain drugs can help control symptoms, among them beta-blockers, which lower the heart rate; midodrine, which constricts outlying blood vessels; fludrocortisone, which increases salt retention and blood volume; and antidepressants that raise serotonin levels in the brain.

Mark Kaufman and his colleagues from McLean Hospital in Belmont, Massachusetts, gave nine men and 13 women identical doses of cocaine, which constricts the vessels that feed blood to the brain, thus causing brain damage.In most of the body, blood circulation did not vary with sex or menstrual phase.

Even more interesting, the suits have what Blackhawk calls an "Integrated Tourniquet System," which constricts blood vessels in the event of an injury, thereby reducing unnecessary bleeding.

The Food and Drug Administration approved the pill last January, making it the first new medicine cleared in two decades to treat the crushing chest pain caused by angina, a condition in which constricted blood vessels starve the heart muscle.