A reference in pharmacology to the affinity of an agonist or antagonist for specific types (alpha1, alpha2, beta) of adrenoceptor sites. The higher the specificity the more consistent the neuromodulation.
back to topWall dividing the chambers of the heart.
back to topConstriction of a passage. The term is often used if a valve opening is narrowed (mitral valve stenosis, for example) or a blood vessel is constricted.
back to topSmall supporting frame positioned inside the artery in order to reduce the chance of the artery becoming constricted again.
back to topA cardiovascular disorder where a blood vessel taking oxygen and nutrients to the brain bursts or is blocked by a blood clot or other particles. If deprived of oxygen, nerve cells in the brain cannot function and they die, thus stopping the function of parts of the body they control.
back to topThat part of the autonomic nervous system that regulates endocrine, heart, and smooth muscle function.
back to topBrief loss of consciousness brought about by a temporary deficiency of oxygenated blood.
back to topA period of heart contraction in which blood is expelled from the ventricles.
back to topThe highest blood pressure, occurring upon heart contraction.
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