What does the QRS complex represent in ECG?

  • Atrial Diastole

  • Atrial systole

  • ventricular systole

  • Joint Diastole

What does the T wave represents in ECG?

  • Atrial Diastole

  • Atrial systole

  • ventricular Diastole

  • Joint Diastole

What does the depolarization of ventricles initiate?

  • Atrial Diastole

  • Atrial systole

  • ventricular systole

  • Joint Diastole

By counting number of QRS complex, one may get which information?

  • Rate of breathing

  • cardiac output

  • Heart beat rate

  • stroke volume

The deviation from the characteristic ECG indicates a possible abnormality; this information can be utilized in which field of Biology?

  • Clinical Biology

  • Biotechnology

  • Molecular Biology

  • Pedigree analysis

Depolarisation and repolarisation actually initiate ___________ in different chambers of heart?

  • contraction and relaxation

  • relaxation and contraction

  • thickening and thinning

  • thinning and thickening

Three lead configuration of ECG has arrangement?

  • one to each wrist and one to right ankle.

  • one to each ankle and one to right wrist.

  • one to each wrist and one to left ankle

  • one to each ankle and one to left wrist.

Which wave of ECG represents repolarization?

  • P wave

  • QRS complex

  • ST wave

  • T wave

The passage of blood from left atrium to body is

  • left atrium – left ventricle – Aorta – Body

  • left atrium – right ventricle – Aorta – Body

  • left atrium – left ventricle – Pulmonary Artery – Body

  • left atrium – left ventricle – Pulmonary Veins – Body

The passage of blood from right atrium to body is

  • right atrium–right ventricle–pulmonary vein–body

  • right atrium–right ventricle–pulmonary artery–lung

  • right atrium– left ventricle–pulmonary vein–body

  • right atrium–left ventricle–pulmonary artery–lung

The pathway of single circulation is

  • Heart – body – gills – Heart

  • Heart – gills – body – Heart

  • Heart – body –gills – body – heart

  • body – heart – gills – Heart

In single circulation, the heart pumps

  • oxygenated blood

  • deoxygenated blood

  • mixed blood

  • blood–nutrients

What does systemic circulation provide to tissue?

  • nutrient

  • oxygen

  • other essential substances

  • all of these

Which of the following order is correct?

  • Veins – capillaries – arteries

  • Arteries – arterioles – capillaries – venules – veins

  • Arterioles – Arteries – capillaries – venules – veins

  • Arteries – arterioles – venules – capillaries – veins

The lumen of artery is _____ than vein.

  • narrower

  • wider

  • same

  • very much reduced

The hepatic portal system is

  • Between digestive tract and hypothalamus

  • Between digestive tract and liver

  • Between liver and hypothalamus

  • Between liver and Pituitary

The hepatic portal ________ carries blood from ________ to liver before it is delivered to the ________.

  • vein, Pancreas, Pulmonary

  • artery, intestine, systemic

  • vein, intestine, systemic

  • artery, Pancreas, Pulmonary

Which side of the heart is involved in pulmonary circulation?

  • left side

  • right side

  • partially left side and completely right side

  • both side equally

Which vessels bring blood to right atrium?

  • Vena Cava and coronary sinus

  • Pulmonary veins

  • Pulmonary artery

  • Aorta and pulmonary artery

Human Heart has SA node which makes it–

  • myogenic heart

  • neurogenic heart

  • Digenic Heart

  • Rhinogenic Heart

The neurocenter for the activity of the Heart is located in

  • Pons

  • midbrain

  • medulla oblangata

  • cerebrum

Medulla Oblangata regulates the Cardiac activity via

  • CNS

  • ANS

  • PNS

  • CNS and PNS

The sympathetic nerves give _______ neural signals to heart and increases the _______.

  • stimulatory, ventricular contraction

  • inhibitory, stroke volume

  • stimulatory, ventricular relaxation

  • inhibitory, ventricular relaxation

If the strength of ventricular contraction increases then it will cause

  • increase in Heart beat rate

  • increase in cardiac output

  • reduced supply of oxygen

  • both (1) and (2)

What is the effect of parasympathetic neural signals on Heart Activity?

  • decreases the rate of heart beat

  • decreases the speed of conduction of action potential

  • decreases the cardiac output

  • all of these

Arteries have ________ layer of smooth muscles than ________

  • thicker, vein

  • thicker, aorta

  • thinner, vein

  • thinner, aorta

The hormonal regulation of Cardiac output is

  • mediated by adrenal cortex

  • mediated by adrenal medulla

  • mediated by thyroid

  • mediated by pineal

The normal blood pressure is _____ and if it gets increased, such disorder is called _____

  • 120/80; hypertension

  • 80/120; blood tension

  • 120/80; high blood pressure

  • both (1) and (3)

The pumping pressure of healthy heart is

  • 120 mmHg

  • 80 mmHg

  • 140 mmHg

  • 90 mmHg

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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