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Zoology MCQs for NEET — Practice Questions with Answers

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The resting pressure of healthy heart is

120 mmHg

80 mmHg

140 mmHg

90 mmHg

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Explanation

NCERT, P-287 Disorders of Circulatory System

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The pumping pressure is also known as ______ and the resting pressure is also known as ______

systolic pressure, diastolic pressure

diastolic pressure, systolic pressure

normal pressure, abnormal pressure

abnormal pressure, normal pressure

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Explanation

NCERT, P-287 Disorders of Circulatory System

● ● ● ● ●

Atherosclerosis affects

the vessel which supply blood to kidney

the vessel which supply blood to brain

the vessel which supply blood to heart muscle

the vessel which supply blood to lungs

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Explanation

NCERT, P-288, CAD

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The lumen of arteries gets ______ because ______ of ______

narrower, dissolution, fat, cholesterol and fibrous tissues.

narrower, deposition, fat, cholesterol and fibrous tissues.

wider, deposition, fat, cholesterol and fibrous tissues.

wider, dissolution, fat, cholesterol and fibrous tissues.

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Explanation

NCERT, P-288, CAD

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Which one of the following statement is true regarding Angina?

Heart stops beating

more common in children

Does not affect the blood flow

No enough oxygen is reaching to heart muscles

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Explanation

NCERT, P-288, Angina

● ● ● ● ●

Congestive Heart disease is another name for

Heart failure

Cardiac Arrest

Heart Attack

Angina

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Explanation

NCERT, P-288, Heart Failure

● ● ● ● ●

The value of beat volume is

70 mL

140 mL

90 mL

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Explanation

NCERT, P-288, Summary 2^nd last line

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The action potential causes ______ and then the ______ to undergo ______ followed by ______.

ventricles, atria, contraction, relaxation

atria, ventricles, contraction, relaxation

ventricles, atria, relaxation, contraction

atria, ventricles, relaxation, contraction

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Explanation

The arrangement of nodal tissue is such that it facilitates firstly contraction of atria and then ventricles and after contraction, relaxation comes.

● ● ● ● ●

Angina is more common in–

Young Men

Aged Women

Middle aged and elderly men and women

children

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Explanation

NCERT, P-288, Angina

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The action potential of ventricular side and to the entire ventricular musculature is conducted by–

AVN, AV bundle and Bundle of His

SAN, AVN, AV bundle and Bundle of His

SAN, AV bundle and Bundle of His

Only by Bundle of His

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Explanation

NCERT, P-284 All the segments of nodal tissue situated on Ventricular side will be responsible for it.

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