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noiselessly    
ad. 悄悄地;轻轻地

悄悄地;轻轻地

noiselessly
adv 1: without a sound; "he stood up soundlessly and
speechlessly and glided across the hallway and through a
door" [synonym: {noiselessly}, {soundlessly}]

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  • Difference Between Alpha and Beta Receptors
    Alpha and beta receptors are two types of adrenergic receptors stimulated by the sympathetic nervous system Alpha receptors stimulate effector cells while beta receptors relax effector cells Alpha receptors stimulate vasoconstriction while beta receptors stimulate vasodilation
  • α- and β-Adrenergic Receptors - Basic Neurochemistry - NCBI Bookshelf
    Distinct subtypes of β-adrenergic receptor exist and have important pharmacological consequences β 1 -Adrenergic receptors predominate in the heart and in the cerebral cortex, whereas β 2 -adrenergic receptors predominate in the lung and cerebellum
  • Adrenergic receptor - Wikipedia
    The adrenergic receptors or adrenoceptors are a class of G protein-coupled receptors that are targets of many catecholamines like norepinephrine (noradrenaline) and epinephrine (adrenaline) produced by the body, but also many medications like beta blockers, beta-2 (β 2) agonists and alpha-2 (α 2) agonists, which are used to treat high blood
  • 14. 4B: Adrenergic Neurons and Receptors - Medicine LibreTexts
    There are two main groups of adrenergic receptors, α and β, with several subtypes α receptors have the subtypes α1 (a Gq coupled receptor) and α2 (a Gi coupled receptor) Phenylephrine is a selective agonist of the α receptor β-receptors have the subtypes β1, β2, and β3
  • Alpha Beta Adrenergic Receptors | Overview Difference
    While alpha and beta receptors both work to aid in the fight or flight response, they do so in opposing ways Alpha receptors cause muscle contraction and vasoconstriction in certain body
  • 20. Actions of the Autonomic Nervous System: Adrenergic Pharmacology . . .
    Beta Adrenergic Receptors Beta receptors are composed of three main categories, beta-1, beta-2 and beta-3, and are located in various organs and tissues (see below) All subtypes of beta adrenoceptors are Gs coupled GPCRs that stimulate adenylyl cyclase [AC] leading to an increase in cAMP
  • Physiology of Adrenergic Receptors - PhysiologyModels. info
    Adrenergic receptors respond to sympathetic stimulation and blood-borne epinephrine Receptors are located on smooth muscle, cardiac pacemaker, myocardium and glands Stimulatory subtypes are alpha 1 and beta 1; inhibitory subtypes are alpha 2, beta 2 3
  • Adrenergic receptors: Video, Causes, Meaning - Osmosis
    Adrenergic receptors are proteins found on the surface of cells that respond to the hormone adrenaline (epinephrine) There are three types of adrenergic receptors - alpha, beta, and gamma Each type responds to a different set of chemical signals from adrenalin
  • Adrenergic Receptors (Alpha Beta) and Their Distribution
    When norepinephrine is released from nerve terminals, it interacts with post-synaptic receptor sites to elicit a pharmacological response In 1948, Ahlquist observed that the tissues he studied included two forms of adrenergic responses, alpha and beta responses, as shown in the table





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