Q:

Adrenaline differs from noradrenaline in that it

safaTerkawi
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2022-08-15
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Adrenaline differs from noradrenaline in that it.

  1. Increases the heart rate when injected intravenously.
  2. Is the main catecholamine secreted by the adrenal medulla.
  3. Increases the strength of myocardial contraction.
  4. Is a more potent dilator of the bronchi.
  5. Constricts blood vessels in mucous membranes.
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safaTerkawi
2022-08-15
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A. True Noradrenaline injection causes reflex slowing of the heart.

B. True Adrenaline constitutes some 80 per cent of this secretion.

C. False Both increase the strength of myocardial contraction.

D. True It has stronger beta effects (including bronchodilation).

E. False Both vasoconstrict (‘decongest’) mucous membranes

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