Medical Science Mcqs 5254 MCQs [All-Courses]

Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

Absolute period when whole heart is in diastole is______________?

A 0.7 seconds

B 0.3 seconds

C 0.7 seconds

D 0.4 seconds

Review Detailed Answer

Correct Answer: 0.4 seconds

Cardiac cycle duration in man is_______________?

A 0.4 seconds

B 0.8 seconds

C 1.2 seconds

D 1.6 seconds

Review Detailed Answer

Correct Answer: 0.8 seconds

Coronary blood flow is usually predominantly controlled by_____________?

A Auto regulation

B Hormones

C Parasympathetic impulses

D Sympathetic impulse

Review Detailed Answer

Correct Answer: Auto regulation

Fastest conducting tissue in human heart _________________?

A AV node

B SA node

C Bundle of His

D Purkinje fibers

Review Detailed Answer

Correct Answer: Purkinje fibers

Closure of aortic valve occurs before the following event_______________?

A Isovolumetric contraction

B Isovolumetric relaxation

C Pre-diastole

D Pre-systole

Review Detailed Answer

Correct Answer: Isovolumetric relaxation

Cardiac index is related to ______________?

A cardiac output and body weight

B Cardiac output and body surface area

C Cardiac output and work of the heart

D Stroke volume and pulse rate

Review Detailed Answer

Correct Answer: Cardiac output and body surface area

Stimulation of barorceptor leads to ________________?

A Increased blood pressure, increased heart rate

B Decreased B.P , decreased heart rate

C Increased B.P, decreased heart rate

D Decreased B.P, increased heart rate

Review Detailed Answer

Correct Answer: Decreased B.P , decreased heart rate

Consider the following statements________________?

A Starling’s law of heart states that increase in force of contraction is directly related to cardiac ouput

B Staling’s law of heart states that the force of ventricular contraction is directly related to the end diastolic volume

C Both A and B

D None of the above

Review Detailed Answer

Correct Answer: Both A and B

Minimum blood pressure is in_____________?

A Aorta

B Arteries

C Capillaries

D Venules

Review Detailed Answer

Correct Answer: Venules

The largest function of the total peripheral resistance is due to _________________?

A Venules

B Arterioles

C Capillaries

D Precapillary sphincters

Review Detailed Answer

Correct Answer: Arterioles

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Medical Science Mcqs 5254 MCQs [All-Courses]

All Topics 5254

All Topics 5254

Absolute period when whole heart is in diastole is______________?

Cardiac cycle duration in man is_______________?

Coronary blood flow is usually predominantly controlled by_____________?

Fastest conducting tissue in human heart _________________?

Closure of aortic valve occurs before the following event_______________?

Cardiac index is related to ______________?

Stimulation of barorceptor leads to ________________?

Consider the following statements________________?

Minimum blood pressure is in_____________?

The largest function of the total peripheral resistance is due to _________________?