Question 1

The blood returning to the heart from lungs via pulmonary vein has more:

Accepted Answer

Correct answer is C

Question 2

Systemic heart refers to:

Accepted Answer

Correct answer is C

Question 3

The problem of electrical discontinuity caused in the normal heart by the connective tissue separating the atria from the ventricles is solved by:

Accepted Answer

Correct answer is A

Question 4

What is total diastolic time of ventricle in cardiac cycle?

Accepted Answer

Correct answer is B

Question 5

Which one of the following is a matching pair?

Accepted Answer

Lubb is the first, low pitched heart sound produced due to the closure of bicuspid and tricuspid valves at the start of ventricular systole.

Question 6

In the heart of mammals the bicuspid valve (mitral valve) is situated between:

Accepted Answer

The bicuspid valve is a valve consisting of two membranous flap or cups situated between the atrium and ventricle of the left side of the heart in mammals.

Question 7

The auriculo-ventricular node in human heart was discovered by:

Accepted Answer

Correct answer is B

Question 8

Ventricular diastole occurs due to:

Accepted Answer

Correct answer is C

Question 9

Nature of valves in the heart is:

Accepted Answer

Correct answer is A

Question 10

Which of the following is the correct statement about the irculatory system of cockroach?

Accepted Answer

The heart of cockroach is pulsatile and formed of 13 inverted funnel-shaped segmental chamber, each chamber (except last one) has a pair of apertures called ostia which open into the pericardial sinus.

Question 11

The T-wave in an ECG represents:

Accepted Answer

Correct answer is D

Question 12

The volume of blood that enters into the aorta with each ventricular systole is called:

Accepted Answer

Correct answer is B

Question 13

Epinephrine is secreted by:

Accepted Answer

Correct answer is A

Question 14

Heart beat can be initiated by:

Accepted Answer

Correct answer is A

Question 15

The other term for heart attack is:

Accepted Answer

Correct answer is B

Question 16

Read the statements regarding the cardiac system and choose the right option.A. Human heart is an ectodermal derivativeB. Mitral valve guards the opening between the right atrium and left ventricleC. SAN is located on the left upper corner of the right atriumD. Stroke volume × Heart rate = Cardiac output

Accepted Answer

The amount of blood flowing from the heart over a given period of time is known as the cardiac output. It depends upon the heart rate and stroke volume.Cardiac output = stroke volume × heat rate

Question 17

Oxygenated blood is carried by:

Accepted Answer

The left atrium receives oxygenated blood from the lungs through four of pulmonary veins.

Question 18

Purkinje's fibres are special types of:

Accepted Answer

Within the lateral walls of ventricles and help in conduction of cardiac impulse.

Question 19

The tricuspid valve is present at the origin of:

Accepted Answer

Correct answer is B

Question 20

The atrio-ventricular valves of the heart is prevented from turning inside out by tough strands of connective tissue is called as:

Accepted Answer

Correct answer is A

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