During high blood pressure, regulations of heart beat and circulation are controlled by

Vasodilator and vasoconstrictor centres

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Cardio-stimulatory and vasoconstrictor centres

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Cardio-inhibitory and vasoconstrictor centres.

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Cardio-inhibitory and vasodilator centres.

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Solution

The correct option is B Cardio-inhibitory and vasoconstrictor centres.
Short term regulation of high blood pressure is mediated through baroreceptors which cause inhibition of vasoconstrictor centre (resulting in peripheral vasodilation) and stimulation of cardio-inhibitory centre through vagal stimulation that slow down heart beat.
So, the correct answer is 'Cardio-inhibitory and vasoconstrictor centres.'

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Similar questions

Q. Which of the following cells secrete vasodilators and vasoconstrictors?

Fill up the blanks with appropriate cells and secretions of Areolar tissue:

(i)____ are secretory cells that release Heparin.
(ii)_____ is an anticoagulant, histamine a vasodilator that lowers blood pressure and serotonin a vasoconstrictor that increases BP.
(iii)____ are immune cells that are phagocytic that is they digest invading pathogens or general tissue waste.
(iv)____ produce white and yellow fibers which, are present in high quantity in areolar tissue.

Fill up the blanks with appropriate cells and secretions of Areolar tissue :

(i)____ are secretory cells that release (ii)_____an anticoagulant, histamine a vasodilator that lowers BP and serotonin a vasoconstrictor that increases BP.

(iii)____ are immune cells that are phagocytic that is they digest invading pathogens or general tissue waste.(iv)____ produce white and yellow fibers which, are present in high quantity in areolar tissue.

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Q. Inhibitory centre and pneumotaxic centre concerned with

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