Medical relating to or concerned with physicians or the practice of medicine. Medicine is the field of health and healing. It includes nurses, doctors, and various specialists. It covers diagnosis, treatment, and prevention of disease, medical research, and many other aspects of health. Academic Task has 4000 plus medical MCQs and answers with detailed explanations for medical exam preparation and test. MCQs of Medical covers the topic like basic sciences, clinical sciences, principle and practice of medicine, intensive care medicine MCQs, Nursing MCQs, Medical devices, Physical and occupational therapy – and much more. Also, check MCQ on Biochemistry here.
71. The dicrotic notch on the aortic pressure curve is caused by_________________?
A. Closure of the pulmonary valve
B. Rapid filling of the left ventricle
C. Closure of the aortic valve
D. Contraction of the atria
72. The function of Carotid body is_______________?
A. Measures the change in Po2 in arterial blood
B. Measures Po2 in venous blood
C. Measures the changed in CO2 in arterial blood
D. Measures the change in CO2 in venous blood
73. What is common between systemic and pulmonary circulation is_____________?
A. Volume of the circulation per minute
B. Peripheral vascular resistance
C. Pulse Pressure
D. Total Capacity
74. The velocity of conduction in the Purkinjean fibers of the heart is__________________?
A. 1 to 4 m/sec
B. 5 to 8 m/sec
C. 9 to 12 m/sec
D. More than 12 m/sec
75. Which of the following increases turbulence in blood flow ?
A. Reynolds number < 2000
B. Decrease in velocity of blood
C. Decrease in density of blood
D. Increase in diameter of blood vessel
76. Glomerular capillary pressure differ from other capillaries of body in______________?
A. Higher filtration pressure
B. Lower filtration pressure
C. Both of the above
D. None
77. In determining blood pressure by auscultatory method_____________?
A. The loudest sound is the diastolic pressure
B. Systolic pressure estimation tends to be lower than those make by palpatory method
C. The first sound heard is the systolic pressure
D. The sounds that are heard are generated in heart
78. 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
79. Cardiac cycle duration in man is_______________?
A. 0.4 seconds
B. 0.8 seconds
C. 1.2 seconds
D. 1.6 seconds
80. Coronary blood flow is usually predominantly controlled by_____________?
A. Auto regulation
B. Hormones
C. Parasympathetic impulses
D. Sympathetic impulse