The neurocenter for the activity of the Heart is located in

(1) Pons

(2) midbrain

(3) medulla oblangata

(4) cerebrum

Subtopic:  Regulation of Cardiac Activity |
 90%
From NCERT
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Medulla Oblangata regulates the Cardiac activity via

(1) CNS

(2) ANS

(3) PNS

(4) CNS and PNS

Subtopic:  Regulation of Cardiac Activity |
 69%
From NCERT
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The sympathetic nerves give ------- neural signals to heart and increases the-------.

(1) stimulatory, ventricular contraction

(2) inhibitory, stroke volume

(3) stimulatory ,ventricular relaxation

(4) inhibitory ,ventricular relaxation.

Subtopic:  Regulation of Cardiac Activity |
 89%
From NCERT
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If the strength of ventricular contraction increases then it will cause

(1) increase in heart beat rate

(2) increase in cardiac output

(3) reduced supply of oxygen

(4) both 1 and 2

Subtopic:  Regulation of Cardiac Activity |
 89%
From NCERT
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What is the effect of parasympathetic neural signals on Heart Activity?

(1) decreases the rate of heart beat

(2) speed of conduction of action potential

(3) decreases the cardiac output

(4) all of these

Subtopic:  Regulation of Cardiac Activity |
 92%
From NCERT
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Arteries have ………layer of smooth muscles than……

(1) thicker, vein

(2) thicker, aorta

(3) thinner, vein

(4) thinner, aorta

 82%
From NCERT
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The hormonal regulation of Cardiac output is

(1) mediated by adrenal cortex

(2) mediated by adrenal medulla

(3) mediated by thyroid

(4) mediated by pineal

Subtopic:  Regulation of Cardiac Activity |
 85%
From NCERT
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The normal blood pressure is-------- and if it gets increased, such disorder is called---------

(1) 120/80; hypertension

(2) 80/120; blood tension

(3) 120/80; high blood pressure

(4) both 1 and 3

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 64%
From NCERT
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The pumping pressure of healthy heart is

(1) 120 mmHg

(2) 80 mmHg

(3) 140 mmHg

(4) 90 mmHg

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 94%
From NCERT
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The resting pressure of healthy heart is

(1) 120 mmHg

(2) 80 mmHg

(3) 140 mmHg

(4) 90 mmHg

Subtopic:  Atherosclerosis, Hypertension & Ventricular Fibrillation |
 93%
From NCERT
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